Viral riddles

Jonny's mum had six kids with names all rhymes:

Milly \ Conny \ Molly \ Bolly \ Billy
What is the name of the sixth son?

Answer

Jonny.

In how many arrangements can a teacher seat 3 girls and 3 boys in a row of 6 seats if the boys are to have the first, third, and fifth seats?

Answer

36.

First of all we know that the boys are going to be in the 1st,3rd, and 5th seats. So the girls must be in the 2nd, 4th, and 6th seats.
So the first question we should ask ourselves is how many ways can 3 boys be arranged in 3 seats.
Lets say our boys are named A, B, and C inspiring names I know...
We can have ABC, ACB, BAC, BCA, CAB, or CBA 6 ways to arrange the boys.
Now for each way there is to arrange a the boys, there are six ways to arrange the girls (same arguement for finding the number of ways to arrange the boys).

My first wears my second; my third might be what my first would acquire if he went to sea. Put together my one, two, three, and the belle of New York is the girl for me.
What one word am I?

Answer

Manhattan.

Horse A can run 1 lap per minute.
Horse B can run 2 laps per minute.
Horse C can run 4 laps per minute.
If they all start at the same time at the same place, how much long will take for each of them to meet back at the starting line?

Answer

1 minute.

It is dark, but it can be seen only if there is light.
What is it?

Answer

A shadow.

Why are Teddy Bears never hungry?

Answer

Because they are always stuffed.

What did the fish think when it hit the wall?

Answer

Dam!

I am a five-digit whole number, read the same forward, backward and upside down. My second digit is half my third digit; my fifth digit is the product of my first and last digits; and the sum of my whole is ten.
What am I?

Answer

10801

Using the digits 1 up to 9, two numbers must be made. The product of these two numbers should be as large as possible. All digits must be used exactly once.
Which are the requested two numbers?

Answer

9642 and 87531.
The digits of the requested two numbers obviously form descending sequences. Furthermore, if you have two pairs of numbers with equal sums, the pair of which the numbers have the smallest absolute difference, is the one of which the numbers have the largest product. Using this knowledge, the two numbers can easily be constructed by placing the digits one by one, starting with 9 and ending with 1:

9

8 -> 96

87 -> 964

875 -> 9642

8753 -> 9642

87531
Conclusion: the requested two numbers are 9642 and 87531 (and the product of these two numbers is 843973902).

A man walks into a bar and asks the bartender for a glass of water. The bartender pulls out a gun, and the man says, "Thank you," and leaves.
Why?

Answer

The man had the hiccups. He wanted the water so he could get rid of them, so the bartender pulled out the gun and scared him. The man's hiccups went away, and he thanked the bartender.

First word: a part of the body
Second word: you do this to your clothes
Together: you might use this after you brush your teeth

Answer

Mouthwash.

We hurt without moving. We poison without touching. We bear the truth and the lies. We are not to be judged by our size.
What are we?

Answer

Words.