I have branches, but no fruit, trunk or leaves. What am I?

Replace the question mark with the correct number in the below-given picture?

What does below rebus means ?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

What can you see in the middle of March and April that you can never see in any other month?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Find the next number in the series below

21 32 54 87 131 ?

Ten coins have been arranged as you can see in the given picture. In this arrangement, a triangle is formed pointing upwards. You have to invert the position of the triangle and make it point downwards while changing the position of 3 coins only. Can you do it?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?