Identify The phrase in the picture.

What makes this number unique: 8,549,176,320?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

What you cannot hold but it is yours?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?