# Best difficult riddles

## Number which is spelled in an alphabetical order

I know a number which is spelled in an alphabetical order. Do you?
Forty.
77.23 %

## A seven letter word

A seven letter word containing thousands of letters.
Mailbox.
77.20 %

## Train's length

A 400 yard long train, travelling at 30 mph, enters a 4.5 mile long tunnel. How long will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel?
9 minutes and 27.2727 seconds.
77.20 %

## Round Manhole Covers

Why are manhole covers round? Do manhole covers really need to be circular?
Manhole covers are round so that they won't fall through the hole into the sewer below them. No matter how you turn the cover, you won't be able to push the cover through the hole. However, if you were to have square manhole covers, you would be able to rotate the cover such that one of the edges of the square cover is lined up with the diagonal line of the square hole, which would allow the cover to fall through, causing countless problems that the general public would rather avoid.
77.20 %
crazy

## What time is it?

A man gave one son 10 cents and another son was given 15 cents. What time is it?
1:45. The man gave away a total of 25 cents. He divided it between two people. Therefore, he gave a quarter to two.
77.13 %

## Bear without ears

What do you call a bear without ears?
BBBBBBBBB.
77.03 %

## Number 45

Can you write number 45 using only the number 4?
44+44/44
77.03 %

## The smallest number

Which is the smallest number that you can write using all the vowels exactly once?
fIvE thOUsAnd (5000).
77.02 %

## 7+2+5 = ?

Assume: 5+3+2 = 151022 9+2+4 = 183652 8+6+3 = 482466 5+4+5 = 202541 Then; 7+2+5 = ?
143547 Explanations: Multiplication of the 1st & 2nd numbers, 5*3 = 15; 9*2 = 18…thusly, 7*2 = 14 Multiplication of the 1st & 3rd numbers, 5*2 = 10; 9*4 = 36…thusly, 7*5 = 35; Multiplication of the 1st & the sum of the 2nd & 3rd numbers. The generated result is reduced by the value of the 2nd number, …thusly, 7*(2+5) = 49 - 2 = 47
76.96 %