When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Why is Saturday stronger than Monday?

When can we add 2 to 11 and get 1 as the correct answer?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

John was piloting a plane behind a car but was never able to overtake it. Why?

If eleven plus two equals one, what does nine plus five equal?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?