Easy Riddles and Answers

Question: When warm my house expands and when cold it contracts,
I am vital to a certain type of pact.

What am I?

Question: If 1+1=4, 7-3=2, and 5x2=8, then what is half of 19?

Question: I run, I save people, and I was hit by lightning, And my public name starts with an "F"

Question: I have curly hair I am a feline I am long I My eyes are shaped like a line. What am I?

Question: Why couldn't the skinny man eat all of his fat burger?