Can you find out which number multiplied by itself will give the output as 12345678987654321?

By what process could you make a 'Tea-Table' into food?

A Detective reviewed the information they had on the case so far.

A lady named 'Caterina' was found shot and they already had a list of suspects - Ankit, Tarun, Harish, Manoj and Manish.
The killer is a fan of challenges him by leaving notes ad various places.
* The first was found in a toilet room.
* The second was found in an art room.
* The third was in a restroom.
* the fourth in an underwater room.
* The fifth at the no-smoking room.

All of the notes read the same thing, 'The clues are where you find the notes.' Yet, nothing was found at any place the notes were.
Detective the genius, immediately solved the case.
Who was the killer?

Which Travels Faster? Solve below famous picture riddle:

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What kind of band never plays music?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

What does this rebus mean?

O
N
C
E
TIME

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?