Ask who, what, where — and say you don’t understand.

• Ко?Ko?Who?
• Шта?Šta?What?
• Где?Gde?Where?
• Када?Kada?When? (also short form 'кад')
• Зашто?Zašto?Why?
• Како?Kako?How?
• Колико?Koliko?How much / how many?
• Који?Koji?Which? (masculine form)
• Куда?Kuda?Where to? (direction of movement)
• Одакле?Odakle?Where from?
• Чији?Čiji?Whose? (masculine form)
• Да ли?Da li?(yes/no question marker, e.g. 'Да ли говориш...?')