There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

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

I shave every day, but my beard stays the same. What am I?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Why do we preferably have round manhole covers and not square ones?

Our product and our sum always give the same answer. Who are we?

What has lots of eyes, but can’t see?

Bay of Bengal is in which state?