Decode below three cipher riddles:

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

If 1+9+8=1, what is 2+8+9?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

What do you see in the given picture?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

I have eight fingers and two thumbs but I do not live. What Am I?

What's the only room from which no one can enter or leave

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?