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

O T T F F S S ?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Be active and find the killer in the picture Riddle below.

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Rectify the following equality 101 - 102 = 1 by moving just one digit.