People make me, save me, change me, raise me. What am I?

Find the next number in the series

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

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

What has many keys but can’t open a single lock?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

My location can be determined by the below rebus.
So where am i ?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

Replace the question mark with the correct number in below Picture: