Time elapsed word problem

Wanda got on the Ferris wheel at the funfair at 6:00 P.M. It went around many times and finally let her off at 6:30 P.M. How long was Wanda on the ride?

Melissa made lasagna for dinner. She put the lasagna into the oven at 5:30 P.M. and took it out at 6:30 P.M. How long was the lasagna in the oven?

Josh's piano lesson started at 2:45 P.M. and ended at 3:45 P.M. How long was Josh's piano lesson?

Fernando rode his bicycle to the library. He left home at 3:00 P.M. and got to the library at 3:45 P.M. How long did the bicycle ride take?

Jane arrived at the dentist's office at 11:15 A.M. and had a seat in the waiting room. She saw the dentist at 11:45 A.M. How long did Jane have to wait?

Scott arrived at the train station at 9:25 A.M. His train finally came at 10:10 A.M. How long did Scott have to wait for the train?

Ernesto drove to the mall on a busy shopping day. He got to the mall car park at 11:55 A.M., but he didn't find a parking spot until 12:15 P.M. How long did it take Ernesto to find a parking spot?

Martin decided to take a pottery class. The class started at 2:55 P.M., and lasted until 4:35 P.M. How long was the class?

Bernard got to the beach at 11:05 A.M. He hunted for seashells, played in the waves, ate lunch, watched the birds dive in the water, and built a sand castle. He left the beach at 5:45 P.M. How long was he at the beach?

Abigail went on a field trip to the history museum. She arrived at the museum at 9:20 A.M. and left at 1:15 P.M. How long was Abigail at the museum?

Zeke went to visit his grandma for her birthday. He left at 6:40 A.M. and got to her house at 12:15 P.M., just in time for the party. How long did it take to drive there?

At 10:30 P.M., Estelle sent her aunt an e-mail. Estelle's aunt wrote back at 9:15 A.M. How long did it take for her aunt to reply?