The more it dries, the wetter it becomes. Can you tell what it is?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

I shave every day, but my beard stays the same. What am I?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

You need to move three matchsticks to form three squares. Can you do it?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Can anyone tell me a word in the English dictionary which has a silent 'z'?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain