Replace the question mark with the correct number in the below-given picture?

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?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

I travel all around the world but always stay in the corner. What am I?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

Can you find out which number multiplied by itself will give the output as 12345678987654321?