It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

I cannot talk, but I always reply when spoken to. What am I?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Using Only Five 5's and any mathematical operator make sum as 37

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.