Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

I look at you, you look at me I raise my right, you raise your left. What am I?

Imagine you are in a room with no windows or doors. How will you get out?

Can you name an animal whose killing cannot be performed without spilling your own blood?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

What has a ring but no finger?