Can you decipher the below rebus?

PBLUESAISNUERSES

What type of curtain does this rebus mean

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

What happened when the wheel was invented?

You balance a broom horizontally on your finger such that your finger is present at the centre of the gravity of the broom (precisely). You mark the spot and cut the broom into two halves. You are left with two pieces - one long piece with the handle and one short piece with bristles and a portion of the handle.

If you weigh both the pieces now, what will happen?
a) The longer piece weighs more.
b) The shorter piece weighs more.
c) Both pieces weigh equally.

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

What work can one never finish?

What does the below mathematical rebus mean?