A man ate 100 apples in the past five days. Each day he ate 6 more apples than the previous day. How many did he eat on the 4th day?
Riddle AnswerLogic Riddles
100 Questions 85 Marks
I was given 100 questions to be solved. I scored 85. The score was calculated by subtracting twice the number of wrong answers from number of correct answers. How many questions did I solve correctly?
Riddle Answer28 Handshakes
There was a small get-together. There were a total of 28 handshakes exchanged between the guests. How many guests were present?
Riddle AnswerWeight 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 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