What does below Rebus say?

XLR8

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Different lights make me strange by changing me into different sizes. What am I?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

What is the difference between a jeweller and a jailer?

Can you count the number of triangles in the given figure?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?