Replace the question mark with the correct number.

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

What question can you never answer yes to?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

What can you see in the middle of March and April that you can never see in any other month?

What number should come in place of the question mark below?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Here is a Swiss Cross. You have to make two straight cuts in the figure so that it is divided into four congruent pieces. Also, you should be able to join these pieces into a square then. Can you accept this challenge?

What part of Turkey has the most feathers?

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?