What has to be broken before you can use it?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

10+10 and 11+11 can give you the same answer.

Explain how?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

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

what does the below rebus means?