You peek inside the tent, and nobody sees you. There are two soldiers in there. They are talking. "What's the password again?" "Do I have to remind you every day? If there is an odd number of soldiers at a gate, the password is 'butter-da'. If there is an even number of soldiers, the password is 'oatmeal'. Got it?" "Yeah, I think so." You go back outside to the gate. The soldiers ask you for a password. There are 5 soldiers there.
Butter-da
Oatmeal