Can you decipher the below rebus?

PBLUESAISNUERSES

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

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

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?

If all the below statements are true

1. Gianni was either in Italy or France in 1997.
2. If Gianni did not kill Versace, Hilton must have killed him.
3. If Versace died of suffocation, then either Gianni killed him or Versace committed suicide.
4. If Gianni was in Italy in 1997, then Gianni did not kill Versace.
5. Versace died of suffocation, but he did not kill himself.

Who killed Versace and where was Gianni in 1997?