I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

What is the end of everything?

Move three sticks of the spiral below to form a square.

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

What is red and smells like blue paint?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

What is the difference between a jeweller and a jailer?

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.