what were the three questions Mark Antony requests of Brutus and Cassius?

If you're referring to Antony's famous speech, then here are three rhetorical questions he extends to the crowd:

He hath brought many captives home to Rome

Whose ransoms did the general coffers fill:

Did this in Caesar seem ambitious?

I thrice presented him a kingly crown,

Which he did thrice refuse: was this ambition?

You all did love him once, not without cause:

What cause withholds you then, to mourn for him?