Viral riddles

If a man has 6 daughters, and each daughter has a brother,
How many children does man have in total?

Answer

7

Complete this sequence (the 95% fail):
2 3 4 9 16 81 256 ?

Answer

6561
There are two sequences arranged alternately. In each sequence the number is the square of the previous number in that sequence. 561 is the square of 81.

Two in a corner, 1 in a room, 0 in a house, but 1 in a shelter.
What am I?

Answer

The letter r

I do not contain flesh, feathers or scales. Yet I have fingers and thumbs.

Answer

Glove.

X + Y = 50
Y + Y + Y = 120
X + Z = 35
Z = ?

Answer

Z = 25.

Y + Y + Y = 120 => 3Y = 120 => Y = 40
X + 40 = 50 => X = 10
10 + Z = 35 => Z = 35 - 10 = 25

Mary's mother had 5 children. January, February, March, and April. Who was the 5th child?

Answer

Mary!

My name makes people think of beauty, but I am generally more prized for my voice. I can warn, save, dismiss, summon, or remind you.
What am I?

Answer

Bell

Two fathers and two sons went fishing. Each fisherman caught a fish, yet only three fish were caught.
How is this possible?

Answer

A boy, his father, and his grandfather went fishing together

What is the first thing that a gardener puts in the garden?

Answer

His foot.

Why don't mountains catch colds?

Answer

They have a snow cap.

I cannot hear or even see, but sense light and sounds there may be. Sometimes I end up on the hook, or even deep into a book.
What am I?

Answer

A worm.

4 people jumped into a pool, 8 heads pop out of the pool, how?

Answer

Because everybody has a head, and a fore-head.