To whom does the "seed" in these promises refer?

Answer

"Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of
one, And to thy seed, which is Christ." Gal. 3: 16.

19. Upon returning from a feast at Jerusalem how came Joseph and Mary to lose Jesus when He was twelve years old?
What does the fifth commandment require of children?
When some went out to gather manna on the seventh day, what did the Lord say to Moses?
How early was this sacrificial system known?
Where had the prophet said Christ should he born?
What special blessings were conferred on the Israelites?
What will then he the condition of all the earth?

Questions & Answers are from the book Bible Readings for the Home Circle