Updated: Added Case 3.
One rabbit saw 6 elephants while going towards River.
Every elephant saw 2 monkeys are going toward river.
And Every monkey holds one parrot in their hands.
Now tell us how many animals are going towards river.
Hint : Use Maths Logic
Answer : scroll down..
Updated 21/04( Many Thanks for comments):
Case 1: Best Case Scenario ( minimum animals to make the statement true)
1 rabbit saw 6 elephants while going to river. So, its only rabbit going to river and not the elephants.
Every elephant saw 2 monkeys going to river. So, it could be same 2 monkeys seen by all the elephants. So there are 2 monkeys going to river.
Hence, total = 1+2 = 3
Case 2: Worst case scenario ( treating all as animals. i.e. max number of animals to make the statement true)
Each monkey has 1 parrot in hand so 12 parrots.
Total = 1 + 6 + 12 + 12 = 31
Case 3: Treating Birds as Animals.
1 Rabbit, 2 Monkeys, 2 Birds
So total of 5.
Thanks all for your valuable comments.