Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

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

What can go up a chimney down, but can't go down a chimney up?

John was drowned by he was not wet. How?

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

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

How do you go from 98 to 720 using just one letter?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?