How many bananas can you eat if your stomach is empty?

What is the word or phrase?

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 Monkey, a squirrel, and an Eagle are racing to the top of the mango tree. Assuming all these animals are in perfect shape, Which animal will reach to Banana first?

Can you solve below mathematical equation?

2^1234 - 2^1233

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

What does this mathematical rebus means ?

Why Aeroplane windows are round?