Answer:
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see.
What comes once in a minute, twice in a moment, but never in a thousand years?
What letter comes next: O T T F F S S ?
What starts with a 'T', ends with a 'T', and has T in it?
The land was white the seed was black it'll take a good scholar to riddle me that. What is it?
What language does a billboard speak?