Can You Solve These Riddles?

1. They belong to me

They belong to you

They can make you feel happy

or make you feel blue

They never end

until the day you do?

2. They say it can come from your ears

it can also generate fear

some people love to do it

indirectly some chew it

it's not welcome in a house

it's quiet as a mouse

What, pray tell, can it be?

3. I keep stuff in

I'm usually on top

I can sit to the right

to the left

or the middle

I'm used to go pow

Can you figure me out now

or do I have you baffled

with this very heady riddle?

4. People love to get good ones

but the bad ones do come

you're guaranteed to get some

so take them and run

they will get things done

5. It flattens things,

and without it,

it flattens you

It's in food

It's in buildings

It's in bridges too

Is this too hard?

or too soft for you?