Can you fill the blank with the correct number?

6 30 870 756030 _____

What part of Turkey has the most feathers?

Why 1729 is a magic number? Answer Logically.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

what does this picture(rebus) riddle means ?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?