Mich. Comp. Laws § 570.420: Answer or demurrer; time for filing, effect of answer.

Sec. 20.

Within 10 days after service of a copy of complaint unless on cause shown, further time shall be allowed by the circuit judge, or circuit court commissioner of the proper county, the party defending shall demur or file his answer upon oath or affirmation or his default may be entered and judgment rendered against him as upon similar actions. The answer shall be full and distinct to each article and allegation of the complaint, but such answer shall not have the effect of a sworn answer in chancery as evidence, nor shall it be necessary to answer any allegation or interrogatory (as provided in the next section) involving a liability to prosecution or punishment, or for a penalty or forfeiture.