useless trivia: What Word Means: Bird Seed?

Questions

who has the most wins in 500cc grand prix racing, with 8 wins?

at the f-1 grand prix race which killed aryton senna, which other driver suffered the same cruel fate?

the top ranking title in sumo wrestling is known as?

what are the 3 types of swords used in olympic fencing (in alphabetical order, no commas)?

who was the only undefeated heavyweight boxer?