How is the moon similar to a dollar?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

Find the number of squares in the below-given picture.

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

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

Count the Triangle in the figure given below:

what does this below rebus represent identXQQQQQME

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

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?