What is the riddle which can be asked all day with a different correct answer each time.

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

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

What is 3/7 chicken, 2/3 cat and 2/4 goat?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?