What number do you get when you multiply all of the numbers on a telephone's number pad?

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

What is the riddle which can be asked all day with a different correct answer each time.

Which part of London exists in France as well ?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

What type of tree can I carry in my hand?

What is always in front of you but can’t be seen?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

What is the coolest letter in the alphabet?