Answer:
When does 4 - 1 = 5 ?
What goes up the hill and down the hill, And spite of all, yet stand still?
What is the largest $ amount of change you can have in your pocket without having exact change for $1?
If a rooster lays an egg on the exact peak of a barn, which side does it fall?
No matter how terrible things get for the people of the Arctic, they will not eat a penguin. Why not?
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.