Who was the only World Heavyweight boxing champion to retire undefeated?

After starting his career with a 48-0 record, Larry Holmes lost his heavyweight title with which fighter?

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Which country’s plane Tu-154, on December 25, crashed on its way to Syria in the Black Sea with 92 people onboard?

Which was the first movie of Irrfan Khan?

Which boxers was the oldest man ever to win the heavyweight title?

Who invented Fountain Pen?

Does Human have more than 5 senses?

How is MongoDB better than other SQL databases?

Which was the first film produced by Madhubala?

Three partners shared the profit in a business in the ratio 5 : 7 : 8. They had partnered for 14 months, 8 months and 7 months respectively. What was the ratio of their investments?

Answer is 20:49:64

The age of a father 10 years ago was thrice the age of his son . Ten years hence, the father's age will be twice that of his son. What is the ratio of their present ages?

Two, trains, one from Howrah to Patna and the other from Patna to Howrah, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 16 hours respectively. What is the ratio of their speeds?

Ten years ago Arun was half of bhargava in age. If the ratio of their present ages is 3:4 what is the sum of their present ages ?

Two trains starting at the same time from two stations 200 km apart and going in opposite directions cross each other at a distance of 110 km from one of them. What is the ratio of their speed ?