Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

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

which number am I?

What is the next number in this matchsticks series riddle?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

When we see 2 but call 10?

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

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

Find the last number in the series below:

voN luJ yaM raM ---

What part of the chicken has the most feathers?