Too many people got Anohana wrong. Thanks for allowing the shorter name too. But I've only ever heard of Anohana in comments after watching Little Busters! and by far, it was one of the most sad animes I have ever watched.
Ah so close 18/19 never seen school rumble so didn't know the character names and the rest of the description applies to a lot of shows. You could probably reduce the time I don't think a full 10 minutes is necessary, also can you add 'haruhi suzumiya' as a possible answer to 'suzumiya haruhi' since the flipped the name in the english release.
I got five. The only one that I didn't get that I've ever heard of before was Fullmetal Alchemist. Missing most of my own personal favorites- Ghost in the Shell, Akira, Serial Experiments: Lain, Neon Genesis Evangelion, Initial D, Princess Mononoke, Patlabor, Venus Wars, Ninja Scroll and Street Fighter among them.
Also if all you watch is mainstream anime, you need to watch more. Cuz the greatest anime aren't just the mainstream ones.