Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

What Does this text mean:

important=important

What is black when you buy it, red when you use it, and gray when you throw it away?

You bought me for dinner but never eat me. What am I?

Below, you can see some coding:
January = 1017
February = 628
March = 1335
April = 145
May = 1353
June = 1064
July = 1074
August = 186

Now deciphering the way it has been coded, can you find out how September will be coded?

What four weights can be used to balance from 1 to 30 pounds?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

Spot what is wrong here in below Picture?

Which part of London exists in France as well ?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?