Most events the answer is yes. It is probably worth checking the specifics of the event
Yes
For lawn tickets, yes. If you purchase your tickets through Ticketmaster, they will send you an email prior to event telling you the rules of the venue and what you should expect.
This depends on each individual event. Check Merriweather's web site as I will probably depend on how many tickets were sold for the lawn area.
Check with MPP! Usually lawn chairs are permitted for lawn tickets.
Usually yes so long as you have lawn tickets but checknthe website for details.
I think if you have a ticket for lawn you can take lawn chairs. This is what they say on their site: "Can I bring a lawn chair or blanket? Lawn chairs are permitted for most shows; however, there are times when only lawn chairs with no legs (stadium seats) are allowed. No lawn chairs of any kind will be permitted on the SkyLawn. Small blankets are allowed for most shows to occupy your personal space; please be courteous of your neighbor"
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