Logic Riddles

Answer: 273.15 degrees Celsius. When making conversions like this you must convert to the Kelvin scale since it is the only one that works on a scale beginning with 0.

Answer: 99 Half of 2 is 1. 2+98=100 1+98=99

Answer: Sound.

Answer: He just copies the great chess player's moves exactly on both boards, going first on one and second on the other. He waits for the great player to make his first move on the first board and copies this on the board he goes first on. He then waits for the chess player to make his move on that board and copies it on the other board. He alternates moves on the two boards like this until the game is over and he ties on both or wins one and loses one.

Answer: A watermelon