Keep scrolling down for answers and more stats ...
1. Author is British
JRR Tolkien was born in Bloemfontein, South Africa, from British parents and was British himself. JK Rowling was born in England.
Harry Potter
Lord of the Rings
Both
2. The hero can do magic
Harry Potter's story begins with him learning is a wizard and going to school to learn how to do magic. Frodo Baggins lives in a world where magic exists, but he doesn't do it himself.
Harry Potter
Lord of the Rings
Both
3. At least one of the movie adaptations won some Academy Awards
The Harry Potter movies were nominated several times but never won any Academy Awards. Return of the King, LOTR 3rd opus, won 11 by itself and holds the record for the most AA won by a movie alongside Ben-Hur and Titanic.
Harry Potter
Lord of the Rings
Both
4. Author wrote other books about the same universe to expand it
For instance, the Silmarilion for LOTR, and Fantastic Beasts and Where to Find Them for HP
Harry Potter
Lord of the Rings
Both
5. The hero is played by a British actor in the most-widely known cinema adaptation of the series
Daniel Radcliffe (Harry) is British but Elijah Wood (Frodo) is American
Harry Potter
Lord of the Rings
Both
6. The hero is guided by a wise wizard with a long beard
Dumbledore for HP, Gandalf for LOTR
Harry Potter
Lord of the Rings
Both
7. The hero is an orphan
Harry's parents died when he was 1, Frodo's when he was 12.
Harry Potter
Lord of the Rings
Both
8. Author created several languages with grammar and extensive vocabulary for their universe
Tolkien created Quenya and Sindarin (elfic languages) with an alphabet, grammar and a dictionary, and a less-developed Dwarf language. JKR mentions invented languages like Gobbledegook spoken by Goblins and Mermish, but she didn't write anything in those languages.
Harry Potter
Lord of the Rings
Both
9. The hero encounters a giant spider who tries and attack him
Aragog the Acromentula fro Harry Potter, Shelob the Great Spider for Frodo Baggins
Harry Potter
Lord of the Rings
Both
10. All the books were written in the 1900s (XXth century)
Only the first 3 Harry Potter books were written by then.