Find all pairs of consecutive even integers both of which are greater than 7 and their sum is less than 25.

Find all pairs of consecutive even integers both of which are greater than 6 and their sum is less than 27.

Find all pairs of consecutive even integers both of which are greater than 6 and their sum is less than 27.

Find all pairs of consecutive odd integers both of which are smaller than 12 and their sum is more than 11.

Find all pairs of consecutive odd integers both of which are smaller than 12 and their sum is more than 11.

Find all pairs of consecutive even numbers which are greater than 8 and their sum is smaller then 27.

Find all pairs of consecutive even numbers which are greater than 8 and their sum is smaller then 27.

Find the pairs of consecutive even positive integers which are larger than 5 and their sum is less than 20.

Find all pairs of consecutive odd natural numbers both of which are larger than 10 and their sum is less than 40.

Find all pairs of consecutive even positive integer both of which are larger than 5 such that sum is less than 23.