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

Can you identify the hidden rebus in the image below?

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

What does below Rebus say?

XLR8

What is the riddle which can be asked all day with a different correct answer each time.

What does this rebus riddle mean?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?