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?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

If eleven plus two equals one, what does nine plus five equal?

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

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

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?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?