When 99 is considered higher than 100?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

A bomb exploded in a room full of married couples and no one died. How?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Whats the next number in the below number sequence pattern.

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?