In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes