1)
Where is Levanon?
1.
Malbim: Some were in Levanon under Chiram's rule, with his men, and some cut smaller trees in Levanon in Eretz Yisrael. There was a need also for smaller trees.
2)
What is the meaning of "Chalifos"?
1.
Rashi: They alternated, like the continuation of the verse explains. There were three sets of 10,000 men. Each set was in Levanon for one month, then in his house for two months, then in Levanon for one month? Radak - each set was in Levanon for four months of the year.
