Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

How can a man go eight days without sleep?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Find the hidden tiger in the given optical illusion ?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Why Wine Glass Stem is so long?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?