This is actually several similar questions compounded together. I hope this doesn't come off the wrong way, but it seems like Noah had the opportunity (and I'm sure he had the motive) to leave the ark ...
The Posuk says that Noah was 600 years when he went into the Teivah (Bereshit 7:6,11). Rashi (Bereshit 8:14) and the rest of the Mefarshim say that the flood took an entire year to complete. The Posuk ...