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?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What is at the end of a rainbow?

why number 8549176320 is one of a kind?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

It is always ahead of me yet I can never see it. What is it?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

You need to move three matchsticks to form three squares. Can you do it?

What do you get if you add 2 to 100 four times?