What is the next number in this matchsticks series riddle?

Complete the table series riddle by finding the number that can replace "??".

Can you decipher the below rebus?

PBLUESAISNUERSES

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

If 21x = 79x, what is the value of x?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?