How many questions are on the Maryland learner’s permit test?
Twenty-five, with a 20-minute clock. The MVA sets the passing mark at 88% or higher, so the margin for misses is thin, and the test is usually taken on a computer at an MVA branch.
Taking the test costs nothing; the MVA charges when it issues the permit. A Type I learner’s permit for someone never licensed is $65, and that fee already covers the later switch to a full license.
Sources: Prepare for a Driver's License Test · Section 1: Driving Tests Requirements · License & ID Fees