Torah Riddles

1) Which mitzvah only applies to someone who is sitting, reclining, or lying down?

2) Explain: The titles of the 12 Sidros in the Book of Bereishit can be placed in two categories, as follows:

• a. Bereishit, Vayera, Vayetze, Vayishlach, Vayeshev, Vayigash, Veyechi;
• b. Noach, Lech Lecha, Chayei Sarah, Toldot, Mikketz