# Best difficult riddles

## 24 from Spare Parts

Using only and all the numbers 3, 3, 7, 7, along with the arithmetic operations +,-,*, and /, can you come up with a calculation that gives the number 24? No decimal points allowed. [For example, to get the number 14, we could do 3 * (7 - (7 / 3))]
7 * ((3 / 7) + 3) = 24
74.05 %
crazy

## All commodities are transacted through me

I live in every part of your body and all commodities are transacted through me! I appear the same, but different!
Cell, Sell.
74.05 %

## 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.
73.93 %

## Two convicts and the escape plan

Two convicts are locked in a cell. There is an unbarred window high up in the cell. No matter if they stand on the bed or one on top of the other they can't reach the window to escape. They then decide to tunnel out. However, they give up with the tunnelling because it will take too long. Finally one of the convicts figures out how to escape from the cell. What is his plan?
His plan is to dig the tunnel and pile up the dirt to climb up to the window to escape.
73.90 %

## I do not eat food.

I do not eat food. But I do enjoy a light meal every day. What am I?
A plant (photosynthesis).
73.81 %
funny

## Hot-dog star

Why didn't the hot-dog star in the movies?
The rolls weren't good enough.
73.80 %
clean

## Silent

In which place are you silent?
In the building ("u" is silent in pronouncing "building".
73.80 %

## What do squirrels give each other

What do squirrels give each other for Valentine’s Day?
Forget-me-nuts.
73.80 %
funny

## Banan go to the doctor

Why did the banana go to the doctor?
Because it was not peeling well.
73.80 %