Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

What is the next number in this series?

4,12,84,3612....

Can you solve below mathematical equation?

2^1234 - 2^1233

Can you count the number of quadrilaterals in the picture below?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

Prove that the below maths equation is true.

8 + 8 = 91

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Prove that twice of ten is the same as twice of eleven.

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?

What is both possible and impossible at the same time?