A boy and a girl are sitting on a bench.
“I am a boy,” says the child with black hair.
“I am a girl,” says the child with brown hair.
At least one of them is lying. Who is the boy and who is the girl?
Riddle AnswerHard Riddles
Missing Digit Trick
A professor asked John to write down any multi-digit number. But, he put a condition, the number should not end with a zero.
John put down the number 96452.
Then the professor asked John to add up the five digits and subtract the total from the original number. John did and here is what he got:
96452 – 26 = 96426
The professor then asked John to cross out any one of the five digits and tell him the remaining numbers. John crossed out the 2 and told the professor the rest of the digits. John neither told the professor the original number nor what he had done with it. Yet, the professor told John the exact number he had crossed out.
How is it possible?
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
Walk to Factory
A father and son work in the same factory. The father takes 30 minutes to walk to his factory and the son is able to cover the same distance in only 20 minutes. If the father were to leave the house 5 minutes earlier, how soon would his son catch up with his father?
Riddle Answer100 Apples in 5 Days
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 Answer