A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

What is the next shape from answers A, B, C, and D figure?

Which word does the below Plexor means ?

With the help clues provided in the image, can you find the 5 digit key?

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?