Can you find out the total number of triangles in the given figure?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

We know that money can be names differently for the purpose it is used for. Some of the examples of money given at following places or for following activities:

In temple = Daan
In school = Fees
During marriage = Dowry
For divorce = Alimony
Paying government = Tax
In court = Fine
Employer to employee = Salary
To kidnappers = Ransom
For illegal reason = Bribe
To civil servant retirees = Pension

Do you know what do we call the money a husband gives to his wife?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

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

Prove that twice of ten is the same as twice of eleven.

Can you find a five letter word that is left with only two letters if one is removed?

Can you identify if it's a murder or a suicide ?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?