Why is phenol more acidic than ethanol ?

Explain the following giving one example for each:

Friedel-Craft's acetylation of anisole

How would you obtain $2$-Methyl propane from $2$-methyl propanol?

How would you obtain :

$2$-Methyl propan-$2$-ol from methyl magnesium bromide

How would you obtain :

Propan-$2$-ol from propane

Account for the following :

Propanol has higher boiling point than butane.

Account for the following :

Ortho-nitrophenol is more acidic than ortho methoxyphenol.