There is one thing that goes round the house and also inside the house but never even share a brief touch. What is 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?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Prove that twice of ten is the same as twice of eleven.

What do you think with the below Picture ?

You see me once in June, twice in November, and not at all in May. What am I?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

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

What can you catch but never throw?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?