Food- dosent matter as long as you have the required amount working.

Baby making- 1 turn

Lumberjacking-100p*2t=3u

Building-Depends on size and what your building and how many people are building.

Training People-See below

Horses:

Find=1p*2t=1h

Breed=2h*1t=1h

Minerals(worst to best)

Stone= 1people*1turns=6units

Iron= 1p*3t=5u

Barracks

Iron Sword=1t

Steel Sword=2t

Archery Range

Archers=1t