What is always in front of you but can’t be seen?

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

What time is it when an elephant sits on a fence?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

what does the below rebus mean?

What does below pictogram mean?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

What is harder to catch the faster you run?

What does this rebus riddle mean?

What's the only room from which no one can enter or leave