Use there is for a singular item and there are for plural items. Start questions with Is there or Are there.
Practical examples
There is a café near the station.
يوجد مقهى قرب المحطة.
There are two chairs by the window.
يوجد كرسيان بجانب النافذة.
Is there a lift in this building?
هل يوجد مصعد في هذا المبنى؟