Solve this riddle after reading the hints.

One farm contains the following animals;

1 cow gives 1 liter milk.

1 buffalo gives 5 liter milk and

4 goats give 1 liter milk.

You know that the number of liters of milk is equal to the number of animals in the farm.

Can you find the least number of animals the farm would have?

Answer:

There will be 1 Cow + 3 Buffalo + 16 Goats

Milk : 1 liter (1 cow) + 15 Liters(3 Buffalo) + 4 Liters(16 Goats)

So Milk: 20 Liters and Animals: 20 (1 + 3 + 16)