If you dug a hole through the centre of the Earth...and jumped in....would you stay in the centre because of the gravity?
Only at the end of the oscillations (a decaying sine wave function) of conversion of potential energy (max at the crust) to kinetic energy (max at the center) and then travel to to opposite crust (kinetic to potential). If there were no friction, this would represent a perpetual motion pendulum...but there's always some guy eating something to interfere.
since bread is square...why is sandwich meat round?
That's how it's extruded.
why is he called the Lone Ranger......when he always has Tonto with him?
He's the Lone Ranger because all the rest of his Company were killed in an ambush. Tonto (his childhood buddy) saved him, taught him Indian ways and invented the silver bullets (more accurate).
If you were to get drunk in a country where the drinking limit is under 21 and went to the states and were still over the limit, could they arrest you for underage drinking even though you did not do the drinking in the states?
No, they couldn't: Jurisdiction. If however you decided to drive, or cause a commotion...that'd be a different story as those violations occured in that Jurisdiction.
Did Noah have woodpeckers on the Ark?....and if so...where did he keep them...?
Yep...and that's how the flood ended: They pecked holes in the Ark, water flooded in and it came to rest on Mount Ararat. As the water rose (inside) it dropped (outside) and when the Ark filled, the people, animals exited.
Alternatively, the Ark sank and everything died, and the Cylons win.
Alternatively...No: He had the real peckers.

Doc has a question for Mickeko: "What was the best thing before sliced bread?"