The principal, the secretary, the gym teacher and the custodian of a school are Ron, Richelle, Joelle and Daniel.
Hints: 
Richelle is taller than the custodian or the gym teacher.
The principal eats alone.
Joelle plays golf with Ron.
The tallest of the four plays lawn bowling.
Daniel eats with the custodian and the gym teacher.
Ron is older than the custodian.
Richelle hates sports.

Question: Which job does each person have?

See answer