Question

paul played the piano at that cafe. they arrived at 6 o'clock yesterday. the student did his homework before lunch. passar pra forma interrogativa do simple past pfvvvv!!!!

Answer 1

Opa, meu caro, é bem simples.
Primeiro, você vai utilizar o verbo auxiliar do passado (did), ele vem na frente nas frases interrogativas. Segundo, como você irá utilizar o verbo auxiliar, o verbo princincipal volta para a forma original.
Observe:
Aff:       Paul played the piano at that cafe.
Int:       Did Paul play the piano at the cafe?

Aff:   They arrived at 6 o'clock yesterday.
Int:   Did they arrive at 6 o'clock yesterday?

Aff:  The student did his homework before lunch
Int:   Did the student do his homework before lunch?