Write down a pair of integers whose: Sum is $-5$

Write down a pair of integers whose: Sum is $-18$ 

Write down a pair of integers whose: Sum is $14$

Write down a pair of integers whose: difference is $6$                 

Write down a pair of integers whose: difference is $-8$ 

$(-25)+0=$_____ 

$0+(-18)=$_____

$(-39)+0=$_____ 

$0+$_____$=-27$