Count the number of triangles in the picture below:

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.

Can you find the key in the picture below?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

I can be cracked, made, told, and played. What am I?

Count the number of squares in the picture below.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

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

What is the next shape from answers A, B, C, and D figure?

A man dies of old age on his 25 birthday. How is this possible?