What does below chemistry rebus means?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Solve this riddle by finding the odd one out from the rest.

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

A man died and leaves Rs.10,000 in his will. There are 6 beneficiaries- his 3 sons and their wives. The 3 wives receive Rs.3960 of which Priyanka gets Rs.100 more than Tanu and Neha gets Rs.100 more than Priyanka.
Pramod gets twice as much as his wife, Tushar gets the same as his wife, and Prashant gets 50% more than his wife.

Who is married to whom?

What does this Rebus Picture means ?

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

What number divided by 4 is the same as that number minus 4?

What does this mean?

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