What goes up but never comes down?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Replace the question mark in the picture below.

If 1+9+8=1, what is 2+8+9?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

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

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

What is the fastest way to double your money?

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.