Can you find the key in the picture below?

Can you solve the maths in the below-given picture equation?

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

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

Can you count the number of triangles in the picture below?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

How many letters are in the alphabet?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?