A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Which alphabet letter is a question?

How can a man go eight days without sleep?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

What does this mathematical rebus means ?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

Can you write down eight eights so that they add up to one thousand?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?