Based on the clue 'a white mark on a horses forehead or the ax mark m...', what is the answer?

Based on the clue 'a white hollow celluloid ball 1 12 inches in diame...', what is the answer? Based on the clue 'a white house mans involvement in the outing of th...', what is the answer? Based on the clue 'a white lining exposed by an angry agkistrodon pis...', what is the answer? Based on the clue 'a white marble museum commemorating queen victoria...', what is the answer? Based on the clue 'a white oak at this new brunswick nj school suppos...', what is the answer? Based on the clue 'a white oak on the campus of this new brunswick ne...', what is the answer? Based on the clue 'a white one of these says silence a red one says i...', what is the answer? Based on the clue 'a white robe worn by a priest at mass', what is the answer?