Can you decipher the below rebus?

PBLUESAISNUERSES

What is the largest number you can write with just 3 digits?

What jumps when it walks and sits when it stands?

What number should come in place of the question mark below?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

What is so fragile that saying its name breaks it?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Can you start the fire using two pieces of wood?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?