Can you count the number of triangles in the given figure?

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 you cannot hold but it is yours?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Below, you can see some coding:
January = 1017
February = 628
March = 1335
April = 145
May = 1353
June = 1064
July = 1074
August = 186

Now deciphering the way it has been coded, can you find out how September will be coded?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

What breaks yet never falls, and what falls yet never breaks?

What does this mathematical rebus means ?