If the number of accio spells cast on a dying dragon by Ron Weasley was 868,741 and the number of incendio spells cast by Hermione Granger was 921,252, how many more spells were cast by Hermione than by Ron? Ans: 52,511

If the number of DA students studying the properties of gillyweed in the library was 531,813 and the number of Triwizard Tournament participants who used gillyweed during the maze challenge was 475,489, how many more DA students studied gillyweed than Triwizard competitors? Ans: 56,324

If the number of wizarding coins awarded to Harry Potter for winning the Triwizard tournament was 617,217 and the number of coins awarded to Cedric Diggory was 495,352, how much more money did Harry Potter receive? Ans: 121,865

If the number of magical books on dark arts found in the Hogwarts library was 713,852 and the number of books on botany was 521,347, how many more books on dark arts were in the Hogwarts library? Ans: 192,505

If the number of points taken away from Gryffindor during the quidditch match against Slytherin was 692,931 and the number of points taken away from Ravenclaw during their match was 531,834, how many more points were taken away from Gryffindor than Ravenclaw? Ans: 161,097

If the number of students who auditioned for the cinematic adaptation of ‘The Tales of Beedle the Bard’ was 871,485 and the number of students who auditioned for the role of Ginny Weasley was 794,359, how many more students auditioned for the Tales of Beedle the Bard? Ans: 77,126

If the number of crazed mandrakes found in the Forbidden Forest was 735,229 and the number of mandrakes successfully transplanted to Hogwarts was 617,125, how many more mandrakes were found in the Forbidden Forest than were successfully transplanted to Hogwarts? Ans: 118,104

If the number of students studying ancient runes in the Hogwarts library was 693,421 and the number of students attending Professor Slughorn’s potions club was 532,813, how many more students were studying ancient runes than attending the potions club? Ans: 160,608

If the number of coins donated to the House Elves’ Free Kitchen by the students of Hogwarts was 821,256 and the number of coins donated to St. Mungo’s Hospital for Magical Maladies was 717,359, how many more coins were donated to the House Elves’ Free Kitchen than to St. Mungo’s? Ans: 103,897

If the number of candles lit by Dumbledore’s Army during their first meeting in the Hog’s Head tavern was 517,284 and the number of candles lit for Harry’s first own cape fitting ceremony was 439,020, how many more candles were lit for Dumbledore’s Army than for Harry’s cape fitting ceremony? Ans: 78,264