In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

How many squares, of any size, can you find on this chessboard which do not contain a Rook?

What is the next number in this matchsticks series riddle?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

What is 3/7 chicken, 2/3 cat and 2/4 goat?

The more of this there is, the less you see. What is it?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?