When we see 2 but call 10?

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?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Complete the table series riddle by finding the number that can replace "??".

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

On 26-01-2022, Juli was murdered at her house in a city in India in the afternoon. There were three suspects in the murder and the following are the statements that were given by them:

John: I visited my village that day.
Jacob: I was out to deposit my house tax in the municipality office at that time.
Jonny: I was at a friend's place having lunch at that time.

Can you find out who is the murderer?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?