Who had 5 Apples, she gave 3 to him, how many did he eat?Has he got a girlfriend on the other side of the village ?
You can get an inhaler for that.Do they no longer teach arithmetic in schools?
1 mile at 4mph = 15minsAlso, taking 19 minutes to run 2 miles dies not necessarily reflect his actual, but could be his average if he was running intervals of say 1/4 mile at 8mph followed by 1/4 mile at 4 mph recovery.
Or...
Ran up a 1-mile hill at 4 mph then back down at 8mph.
Any such hills close to you?