In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

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.

Move four matchsticks to the below square to form three squares?

What kind of band never plays music?

What is the fastest way to double your money?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

Decode the below four famous ciphers:

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

What four weights can be used to balance from 1 to 30 pounds?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?