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

What can go up a chimney down, but can’t go down a chimney up?

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

Below, you can see some coding:
January = 1017
February = 628
March = 1335
April = 145
May = 1353
June = 1064
July = 1074
August = 186

Now deciphering the way it has been coded, can you find out how September will be coded?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

What has a bottom at the top?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

A king sentenced a man to the death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die in a way he decides.

The culprit was clever and said something that saved him from death. What method do you think he must have chosen for his death?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

How many triangles can you count in the figure given?