This is the 113th most frequent Italian word.
qualche
"Qualche" means "some" or "a few" in English.
'Qualche' is used to indicate an indefinite small quantity or number of days.
Ho bisogno di qualche giorno di riposo.
I need a few days of rest.
'Qualche' suggests the plural meaning 'any' in the usage of the question.
Hai visto qualche buon film ultimamente?
Have you seen any good movies lately?
'Qualche' refers to an unspecified number of books, implying more than one but not many.