By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

There is a dressing drawer which contains the following coloured socks in pairs: Purple, Magenta, Crimson, White, Yellow and Turquoise. Now, the socks are paired and each pair is together in the matching set. There is no light in the room and you open the drawer and pick up a pair. Then, without noticing any colour, you keep them back and pick them up again.

Can you calculate the probability that the pair of socks was Yellow both times?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

There are 3 apples in the basket and you take away 2. How many apples do you have now?

What always comes into a house through the keyhole?

How many sides does a circle have?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

What country can make you shiver?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?