Your voice.

he facts in this riddle are clear: There is an initial $30 charge. It should have been $25, so $5 must be returned and accounted for. $3 is given to the 3 friends, $2 is kept by the bellhop - there you have the $5. The trick to this riddle is that the addition and subtraction are done at the wrong times to misdirect your thinking - and quite successfully for most. Each of the 3 friends did indeed pay $9, not $10, and as far as the friends are concerned, they paid $27 for the night. But we know that the clerk will tell us that they were charged only $25 and when you add the $3 returned with the $2 kept by the bellhop, you come up with $30.

Fart.

He was in a 20-story building, but he was only on the first floor.

1972 and 1952 are hospital room numbers.

Fork.

Penguin.

The judges put a glass of water and some food used a spy camera and didn't let them go back home. The judges left and the court closed. So, the man thought it was safe to drink the real man drank the water but the spy camera discovered the real man. Robots don't drink.

O

The letters are two different strings of the alphabet, alternating. So, S T U V, M N O. Put them together, S M T N U O

Book.

He was counting on it.

River.