No they do not allow men to have more than one wife.
Yes, Indonesian Hindu men can have more than one wife, I believe.
Yes, some men did have more than one wife for example Elkanah who had two wives, Hannah and Peninnah.
As long as it's just looking, there's no more or less harm if a wife looks at other men than if a husband looks at other women.
Yes, Shia Muslims in Lebanon are allowed to have more than a wife. Polygamy is still practice in most countries in the Middle east, and quite common.
i believe that in Spain polygamy is illegal so no he can't
They might think of the bad things.
No!
Who dosent marry morer than one person theese days
They might think of the bad things.
Lots of men did. Polygamy was very common back then.
Their are more women than men :)