What has one letter and starts with an E?

What begins with T, ends with T, and has T in it?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

What month of the year has 28 days?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Where do you go to learn how to make ice cream?

What 5-letter word typed in all capital letters can be read the same upside down?

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?

Find the number of squares in the below picture

Solve the counting riddle by identifying the number of triangles in the given picture.