What is the next number in this matchsticks series riddle?

Can you decipher the below rebus?

PBLUESAISNUERSES

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Solve the puzzle by telling what does below picture means.

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?