remove the valve stem, remove the tire on one side of rim, if its a tube type, remove the tube, pump in air to tube find leak use a tire patch kit to fix the hole,check the tire to see if somthing is...
Take tyre off rim repair tire inner tube with puncture repair kit as per instructions replace tyre fill with air if using on wheelbarrow u will have to split the rim to get tyre off !!
Yes, But you'll need a descent amount of Hay/Rubbery/Custody Material, For starters, hay (used in farms) is the #1 thing you could use, If you have a crowbar/something long and easy to push things...