There was a small get-together. There were a total of 28 handshakes exchanged between the guests. How many guests were present?
Riddle AnswerLogic Riddles
Weight of Brick
We have a brick of regular size. It weighs 4kg. How much do you think a similar brick, four times smaller, but made of the same material weigh?
Riddle AnswerTwo Water Lilies
Water lilies grow extremely rapidly. In one pond, a water lily grew so fast that each day it covered a surface area double that of the area it had covered the previous day. At the end of the 30th day, it had covered the pond entirely. How long do you think it will take for two such water lilies to cover the whole pond?
Riddle Answer2 Equals 1 Proof
What is wrong with the following proof?
2=1
a = b
a2 = ab
a2 – b2 = ab – b2
(a+b)(a-b) = b(a-b)
a + b = b
2b = b
2 = 1
Half as Long until Midnight
If it were two hours later, it would be half as long until midnight as it would be if it were an hour later. What time is it now?
Riddle Answer