What is wrong in the below Picture?

What does this rebus riddle mean?

A sundial has the fewest moving parts of any timepiece. Which has the most?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

What time is it when an elephant sits on a fence?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

What does this say?

XLR8

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?