Spot what is wrong here in below Picture?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

What English word has three consecutive double letters?

One of the leprechaun is missing if you see the two pictures attached to this question. Where did he go? When he comes back, do you know where has he been?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Can you count the number of squares in the given picture?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?