01 how many?                           ikutsu?
02 how many is the rest?               ikutsu nokotte imasuka?
03 how many do you have?               ikutsu motte imasuka?

04 how many person?                    nan-nin desuka?
05 how long hours?                     nan-jikan?
06 how many times?                     nan-do?

07 how long(far)?                      dono-kurai desuka?
08 how long it is?                     dono-kurai nagai desuka?
09 how long will it take?              dono-kurai jikan ga kakari masuka?

10 what is the price?                  nedan wa?
11 what is the price?                  nedan wa ikura desuka? (polite)

12 how much?                           ikura?
13 how much it is?                     ikura desuka? (polite)

14 how much is it altogether?          zenbu de ikura desuka?
15 how much is it by one piece?        hitotsu ikura desuka?