Take one out and scratch my head, I am now black but once was red. What am I?

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

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

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?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?