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

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

What you cannot hold but it is yours?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

How many triangles are there in the picture below?

How can you leave a room with two legs and return with six legs?

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?