Can you solve the photo plexer logic ?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

On a beautiful Sunday morning, You ordered a hot tea to your hotel room and suddenly you remember an important thing that needed to be done right now will take around 3 minutes to complete.
Like most people you like your tea to be hot while drinking so, when should you pour cream in the tea?
1. straight away
2. Just people, you drink the team
3. Its does not matter

Decode below three cipher riddles:

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

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?