If eleven plus two equals one, what does nine plus five equal?

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

I have no life, but I can die. What am I?

What has 13 hearts but no other organs?

Replace The Question Mark Below With the Correct Number.

2 {38} 3
4 {1524} 5
6 {3548} 7
8 {????} 9

What four weights can be used to balance from 1 to 30 pounds?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

Using Only Five 5's and any mathematical operator make sum as 37

Can you find the key in the picture below?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?