No sure, There is a customer service desk at the entrance to the HOF in the Atrium, the staff there is extremely pleasant and helpful... Best to give them a call

It is open, but very very busy. I highly recommend going off season or during away games

Adults 18-61 are $15, Seniors, Military, Youth and Students with college ID $12, Children (9-11) $9, Children under 5 are free I don't remember seeing wheelchairs to rent.

Parking was free, parked by the the bar and grill which is inside the stadium but is open I think on a regular basis. I think the price is $15 for adults but higher if you want the tour. A great museum for all Packer fans.

Depends on how long you want to read all the signage in each display. There are also continuous looping videos on a few screens. There is a lot to take in. I would say 2 hour minimum to however long you want to make it. Enjoy, it’s an awesome experience

You can buy tickets online at the packers website.

Yes

I agree.....best to call the HOF. (They should still be good, as when you purchase something online, you don't typically plan to use it that very day, but you never know!)

Hall of Fame? Just buy them at the stadium. There is no reason to try buying them online. The Hall of Fame does not require reservations or only a specific time. The tickets are good for the whole day, which includes leaving and returning on the same day. Stadium tours are different. They have specific fun times and your ticket is only valid for the time slot that you purchase. There are a small number of tour tickets available online. If possible, try to purchase your tour tickets online. It will guarantee you get the stadium tour at the time you want. (Otherwise, but them at the same booth as your Hall of Fame tickets. Arrive early, to get the best time slot options.) Hope this helps!

No advance tickets needed, not sure about discounts