Un conejo vio seis elefantes mientras se dirigía al río. Cada elefante vio dos monos que se dirigían hacia el río. Cada mono sostiene un loro en sus manos. ¿Cuántos animales van al río?

Answer could be:

a) 5

b) 25

Explanation:

Answer a) 5 = 1 rabbit + 2 monkeys + 2 parrots

Note: It can happen that all of the six elephants are seeing just 2 monkeys. But, if there are six elephants it doen't mean there are more than 2 monkeys.

Then if there are 2 monkeys, there must be 2 parrots since each monkey has a parrot.

Answer b) 25 = 1 rabbit + 12 monkeys + 12 parrots

Note: It can happen that each of the six elephants are seeing 2 different monkeys, if this is true, then there are 12 monkeys (because each elephant is seeing at 2 monkeys --> 6 x 2 = 12)

Then if there are 12 monkeys, there must be 12 parrots since each monkey has a parrot.