Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

In a guessing game, five friends had to guess the exact numbers of apples in a covered basket.
Friends guessed 22, 24, 29, 33, and 38, but none of the guesses was correct. The guesses were off by 1, 8, 6, 3, and 8 (in random order).

Can you determine the number of apples in a basket from this information?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

Which city is three-fifths chick two third cat and 50% goat?

Why are all black people so quick ?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?