Replace the question mark with the correct number below.

What is more useful when it is broken?

You can see it everyday, But cannot touch it at will. What is it?

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 is the largest number you can write with just 3 digits?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?