Can you find out the total number of triangles in the given figure?

What do you see in the image below

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Find the hidden tiger in the given optical illusion ?

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?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

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