What does the below image rebus riddle means ?

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

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

Spot 5 differences in two Christmas tree below:

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

I am quite hot but become too cold if you remove the first two letters. What am I?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

What is the next number in the series?

15 29 56 108 208 ?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?