Count the squares in the matchstick puzzle below?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

O_er_t_o_

Complete the missing letters of the given word.

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo