How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I have thought of a number that is made up by using all the ten digits just once. Here are a few clues for you to guess my number:

First digits is divisible by 1.
First two digits are divisible by 2.
First three digits are divisible by 3.
First four digits are divisible by 4.
First five digits are divisible by 5.
First six digits are divisible by 6.
First seven digits are divisible by 7.
First eight digits are divisible by 8.
First nine digits are divisible by 9.
The number is divisible by 10.

Can you find out the number ?

10+10 and 11+11 can give you the same answer.

Explain how?

Which fur should we be getting from the Lion?

Whats the next number in the below number sequence pattern.

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

What seven-letter word has hundreds of letters in it?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

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