1) It didn't cost much/a lot of money to go to New Zealand.
2) How many songs can you sing?
3) There's a lot of rice in the cupboard.
4) Paco visited many/a lot of countries when he went on holiday
.5) How many interesting cities did Paco see?
6) He didn't see many/a lot of cities, but he saw many/a lot of friends.
7) Do you eat much / a lot of cheese? Yes, a lot
8) Did you send many/a lot of postcards to friends? Yes, I did.