Baby Names Beginning With "Z": Meaning: Remembrance of the Lord?

Questions

---------- is to watch people eating in hopes that they will offer you some.?

Groaking is to watch people ---------- in hopes that they will offer you some.?

Hydroxydesoxycorticosterone and hydroxydeoxycorticosterones are the largest---------- .?

If you look carefully at the picture of Mona Lisa, you will notice a ---------- in the background.?

In English, ---------- is the only digit that has the same number of letters as its value.?