What a Math

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




Similar Riddles

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

Asked by Neha on 23 Jul 2021


What number should come in place of the question mark below?

Logical Number in Center

Asked by Neha on 27 Aug 2024

How many triangles are there in the picture below?

Triangle Count Riddle

Asked by Neha on 12 Feb 2026


Find the next number in the series.
1 10 24 43 67 ?

Asked by Neha on 26 Jun 2024

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

Asked by Neha on 25 Oct 2021

Move three sticks of the spiral below to form a square.

Spiral to Square Puzzle

Asked by Neha on 15 Nov 2025


Find the next number in the series below

21 32 54 87 131 ?

Asked by Neha on 16 Nov 2023

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

Asked by Neha on 18 Mar 2024

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Asked by Neha on 07 May 2024


Take away the whole and some still remain. What is it?

Asked by Neha on 19 Dec 2024

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Artificial Intelligence

Artificial Intelligence has crushed all human records in the puzzle game “2048,” achieving a high score of 839,732 and beating the game in only 973 moves without using any undo.