What does this rebus mean?

O
N
C
E
TIME

Can you find the 09 errors in the picture below?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

What Does this text mean:

important=important

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?

A sundial has the fewest moving parts of any timepiece. Which has the most?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?