Answer please im confused....

1)
If poison reaches it's expiry date....

Would it be more poisonous
Or less poisonous???

2)

People learn from mistake....

Ummm most people learn in school...

So school is a mistake??''''

3)
 
A BIG CONFUSION....

What to text after "hmmm" ??

4)

How many holes does a pipe have??
One or two???

Please answer these questions!!!