Can someone please explain how a treasury bond payout works to me like I’m 5?

Let’s say I invest in a 10 year bond. Let’s say it’s a $1M bond at 5%.

A) How much does it cost to buy?

B) How much do I get paid out every year?

C) How is it different than a 2 month, $1M treasury bill?

D) Let’s say yields stay the same and I want to sell the bond in year 7, how much will it be worth?

E) Let’s say I still want to sell in year 7, but yield have gone up to 6%, is the bond now worth less?

Thank you to any one who has the patience to enlighten me!