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

Solve below popular number sequence
314 159 265 358 979 323 846 ?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

Find out the missing number in the picture attached:

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

Find the number of squares in the below-given picture.