As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

How many triangles are there in the picture below?

Can you name some countries which do not have the alphabet 'A' in them?

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

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

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

Can you find the key in the picture below?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H