I am not understanding the exercise so I am feeling generous and giving loads of points (20).
1. Twenty-three times a certain number is much above 14 as 16 is above seven times the number: find it.
2. Divide 105 in two parts, one of which diminished by 20 shall be equal to the other diminished by 15.
3. Find 3 consecutive numbers whose sum is equal to 84.
4. The sum of two numbers is 8, and one of them with 22 added to it is five times the other; find the numbers.
5. The difference between the squares of two consecutive numbers is 121: find the numbers.