Elephant teacher joke

An elephant was teaching her students the monkey, the bird and the giraffe. She said to the bird 1+1. The bird replied 1+1 is equals to 9. The elephant said no and told the giraffe the same question. The giraffe replied that the answer was 11. The elephant said no and asked the monkey the same question. The monkey replied 2. The elephant asked "Where did u get the answer from?" The monkey replied "Just kidding. My real answer was supposed to be 5.