How can you write nineteen in a manner that if we take out one, it becomes twenty?

The centre of the third figure is empty. What digit should fit inside?

Why are all black people so quick ?

What has lots of eyes, but can’t see?

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

What can you see in the middle of March and April that you can never see in any other month?

Fate has decided that you will only be pleased to meet me when you need me

Maybe that is why, when I am working, I start working

However annoying I may be to the regulars, the little ones are always inspired

I will always be waiting if you try to reach me

How many of you can guess my name, let me see

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Can you find the six hidden animals in the picture below?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?