What has to be broken before you can use it?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

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?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

Which is faster, Heat or Cold ? Explain.

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?