There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

What runs around the whole yard without moving?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

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?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.