They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

If 21x = 79x, what is the value of x?

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

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Count the number of triangles in the below picture?

Identify the hidden meaning behind this picture?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

What does this rebus riddle means ?