Learn German: Brauchen wir das Ticket?

This is a "yes/no" question. When a question can be answered with just a simple "yes" or "no", German doesn't use a W-word. Instead, you just move the verb to the very front of the sentence: Brauchen wir...? (Need we...?).

Where is the word for "do" in the German sentence?

German doesn't use "do" to ask questions! While English says "Do we need...?", German simply swaps the order of the subject and the verb. The statement Wir brauchen (We need) just flips to become the question Brauchen wir...? (Literally: "Need we...?").

Why is das used before Ticket?

Ticket is a neuter noun in German, so it uses the neuter word for "the", which is das. A handy tip: many modern words borrowed directly from English (like das Smartphone or das Hotel) are neuter in German.

Why is Ticket capitalized even though it's at the end of the sentence?

In German, all nouns (words for people, places, things, or concepts) are always capitalized, no matter where they appear in the sentence. Since a ticket is a "thing", it must start with a capital letter.