A professor thinks of two numbers

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?




Similar Riddles

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

Asked by Neha on 04 May 2021


A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Asked by Neha on 04 Apr 2024

Count the number of triangles in the given picture.

Find out triangles

Asked by Neha on 28 Mar 2025


Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

Asked by Neha on 11 Aug 2025

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Asked by Neha on 09 Apr 2022

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

Asked by Neha on 14 May 2021


They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Asked by Neha on 21 Apr 2024

On the occasion of Diwali, online seller companies in India are offering a big discount on Iphone14 as below.

: Flipkart offers a Flat 65% discount
: Amazon offers a 10% discount over and over again.
: Shopclues offers RS.45,000 off.

If the original cost of the iPhone is Rs.70,000 Which is the best offer for you?

Asked by Neha on 01 Sep 2024

12345 a famous South Indian actor
567 is a path in jumbled form
8 & 10 are same letters
9 is one among the first six alphabets.
WHO AM I?

Asked by Neha on 14 May 2021


In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

Asked by Neha on 18 Feb 2026

Hot Articles

Amazing Facts

Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.