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Most voted puzzles under tag mathematical

+8 votes
If. 1+2+3=10 . 2+3+4=13 . 4+5+6=19 . 5+6+7=22 Then 6+7+8=?
posted Oct 17, 2014 by Balwinder
  • number puzzle
  • mathematical
  • logic
+6 votes
Solve in 10 Seconds: 1=02, 2=10, 3=30, 4=68, 5=??
posted May 4, 2014 by Hiteshwar Thakur
  • mathematical
  • number puzzle
+5 votes
How much cancellation fee will Mr. Tom pay and what will be the new order value?
posted Apr 7, 2019 by Soniya Akter
  • mathematical
+5 votes
If x + 1/x = 1 then what would be the value of x^(1729) + x^(-1729)
posted Dec 15, 2015 by anonymous
  • mathematical
  • algebra
+5 votes
There are N steps, how many possible ways are there to climb those steps if you can take either 1 or 2 steps at a time?
posted Oct 23, 2013 by Atul Mishra
  • permutation
  • mathematical
+4 votes
A maths symbol is hidden in the below rebus. Can you decipher it?
posted Mar 31, 2017 by Upma
  • logic
  • visual
  • mathematical
+4 votes
If 3+5=6, 2+7=5, 3+9=9 then what does 2+6=?
posted Oct 20, 2016 by anonymous
  • logic
  • mathematical
  • number puzzle
  • riddle
  • puzzle
+4 votes
How many of each coin is there and what are their values?
posted Jul 14, 2016 by Saif Khanam
  • logic
  • mathematical
+4 votes
A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's...........
posted Jul 6, 2016 by Prachi Sharma
  • time age
  • mathematical
+4 votes
In how many ways can all of the letters be placed in the wrong envelopes?
posted Sep 22, 2015 by anonymous
  • mathematical
  • permutation
+4 votes
If 3 2 = 7, 5 4 = 23, 7 6 = 47, 9 8 = 79 then 10 9 = ?
posted Jun 27, 2015 by anonymous
  • mathematical
  • logic
+4 votes
If 137 + 276 =435 how much is 731 + 672 =?
posted Jan 29, 2015 by Jaspalsingh Parmar
  • logic
  • mathematical
+4 votes
What number comes next in this sequence: 1 4 8 13 21 30 36 ?
posted Jan 26, 2015 by Arun Kumar
  • number puzzle
  • mathematical
  • series
+4 votes
For a sphere of radius 10 cm, what would be the ratio of numerical value of surface area to numerical value of volume?
posted Oct 7, 2014 by Yogeshwar Thakur
  • mathematical
  • geometry
+4 votes
IF 2 + 3 = 10 ; 8 + 4 = 96 ; 7 + 2 = 63 ; 6 + 5 = 66 then 9 + 3 = ?
posted May 23, 2014 by Simranjeet Singh
  • number puzzle
  • mathematical
  • logic
+4 votes
Find out odd one bag with single measurement?
posted Mar 25, 2014 by Meenal Mishra
  • mathematical
  • logic
+4 votes
Fill the blank cells in the following figure?
posted Mar 8, 2014 by Shewta Sharma
  • mathematical
  • visual
  • number puzzle
  • logic
+4 votes
What number should replace the question mark in the bottom triangle ?
posted Mar 7, 2014 by Vikas Upadhyay
  • mathematical
  • visual
  • logic
  • number puzzle
+4 votes
Can you find the area of the green shaded region labelled with a question mark?
posted Mar 6, 2014 by Gaurav Sharma
  • mathematical
  • logic
  • visual
+3 votes
Can you solve this Piggy-Bank Gift and Dollar Coin Puzzle?
posted Jul 22, 2020 by Pushpak Chauhan
  • mathematical
  • puzzle
  • visual
+3 votes
What's special with this group of letters?
posted Oct 27, 2019 by Afsana Akhter
  • mathematical
  • logic
+3 votes
How many of each coin is there and what are the coin values?
posted Jan 22, 2019 by Chahat Sharma
  • mathematical
+3 votes
By using all numbers, i.e. 123456789 and subtraction/addition, operators number.........Can you tell any other solution?
posted Dec 27, 2018 by Aman
  • mathematical
+3 votes
A father said to his son, " I was as old as you are at the present at the time of your birth ". If the father's.........
posted Oct 5, 2018 by Upma
  • mathematical
  • time age
+3 votes
A father said to his son, " I was as old as you are at the present at the time of your birth ". If the father's........
posted Aug 24, 2018 by Pankaj Deshmukh
  • mathematical
  • time age
+3 votes
How long did it take Siya to complete her fourth circuit?
posted Mar 15, 2018 by Mridul
  • mathematical
  • logic
+3 votes
I am a prime number. Double of myself is equal to the square if myself. Which number am I ?
posted Mar 2, 2018 by Amarvansh
  • logic
  • number puzzle
  • mathematical
+3 votes
Can you tell me how many number of 20-paisa and 25-paisa he got?
posted Nov 8, 2017 by Karan Joglekar
  • mathematical
+3 votes
Two vehicles set off from the same point to travel the..........kilometres from the starting point will they draw level?
posted Sep 18, 2017 by Atif
  • mathematical
  • logic
+3 votes
What is the maximum distance the car can travel before you are forced to buy a new tyre?
posted Jun 29, 2017 by Sumana
  • logic
  • mathematical
+3 votes
Dmitri was working on a mixture whose weight comprise of 90% liquid and 10% solid. The total weight of the.............
posted Jun 13, 2017 by Yogeshwar Thakur
  • logic
  • mathematical
+3 votes
How many of each coin is there and what are their values?
posted May 29, 2017 by Mishthy Mukherjee
  • logic
  • mathematical
+3 votes
Each circle has radius 1. What is the area of the green region in the following image?
posted Mar 22, 2017 by Salil Agrawal
  • geometry
  • mathematical
+3 votes
Two cars set off from the same point to travel the same journey................ the starting point will they draw level?
posted Feb 8, 2017 by Atif
  • mathematical
  • logic
+3 votes
Find the value of the missing number in the table below.
posted Jan 12, 2017 by Manish Tiwari
  • logic
  • number puzzle
  • mathematical
+3 votes
If the original cost of iPhone is Rs. 70,000 Which is the best offer for you ?
posted Nov 21, 2016 by Rajni
  • logic
  • mathematical
+3 votes
A quarter is one fourth of a dollar but Mr. Brainteaser has...........letter by a digit to make above solution correct ?
posted Nov 7, 2016 by Mohammad
  • number puzzle
  • mathematical
  • logic
+3 votes
Use any mathematical symbols in the space provided to make the Algebraic expressions true?
posted Aug 18, 2016 by Atindra Kumar Nath
  • algebra
  • mathematical
+3 votes
How many miles have they walked?
posted Jun 2, 2016 by Basabdatta Mukherjee
  • mathematical
+3 votes
Three circles of equal radii all intersect at a single point as shown in figure, which of the following must be true?
posted May 1, 2016 by anonymous
  • geometry
  • mathematical
+3 votes
Find the missing number in the table.
posted Apr 14, 2016 by Puneet Batra
  • number puzzle
  • mathematical
+3 votes
Which is larger, the light area or the dark area?
posted Mar 19, 2016 by Aarati Mahajan
  • geometry
  • mathematical
+3 votes
ABCD is a square of side length 1. EFGH are the points on its boundary such that AE=EB, 2BF=FC, 3CG=GD & 4DH=HA...
posted Dec 19, 2015 by anonymous
  • geometry
  • mathematical
+3 votes
How many of each coin is there and what are their values?
posted Oct 6, 2015 by Puneet Batra
  • mathematical
+3 votes
The figure shows an isosceles triangle with AB = BC. The line DE cuts AC extended at F. If AD=5, CE=3 and EF=8 find DE.
posted Jun 18, 2015 by anonymous
  • mathematical
  • geometry
+3 votes
A circle has a radius of 12 units and its center is at one vertex of a square. Find the area of the shaded region?
posted Jun 16, 2015 by Tapesh Kulkarni
  • mathematical
  • geometry
+3 votes
How many pencils and how many jars do I have?
posted Jun 14, 2015 by Pardeep Kohli
  • logic
  • mathematical
+3 votes
Can you tell the numbers represented by blue, red and grey ?
posted Jun 1, 2015 by Mishthy Mukherjee
  • logic
  • mathematical
  • number puzzle
+3 votes
A fire engine travels seven miles to a fire at a speed of 36mph. Its tank holds 500 gallons ......... will it succeed?
posted May 9, 2015 by Karan Joglekar
  • mathematical
+3 votes
What is the ratio of area of large square to the area of smaller square in the following image?
posted Apr 2, 2015 by anonymous
  • geometry
  • mathematical
  • ratio
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