Based on the clue 'a silo but for this only since the mid 20th centu...', what is the answer?

What is referred to by 'a silent mob scene'? Based on the clue 'a silent movie title includes the last name of thi...', what is the answer? Based on the clue 'a silk textile with a short smooth surface or the ...', what is the answer? Based on the clue 'a silly story or superstitious belief is popularly...', what is the answer? Based on the clue 'a silver dollar commemorating desegregation in edu...', what is the answer? Based on the clue 'a silver jubilee honors this anniversary', what is the answer? Based on the clue 'a silver medal goes to totally blind men who score...', what is the answer? Based on the clue 'a silvery food fish or to heat ore in order to ext...', what is the answer?