John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

People put me on the table and cut me but do not eat me. What am I?

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

How many sides does a circle have?

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Using Only Five 5's and any mathematical operator make sum as 37