This is an SQL problem:

For the following question , refer to the following table of Disney characters, created as:

CREATE TABLE characters ( id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, name VARCHAR(20), movie VARCHAR(20), year INT, toys_sold DEC(5,2), type INT);

id	name	movie	year	toys_sold	type
1	Captain Hook	Peter Pan	1953	30	2
2	Tiger Lily	Peter Pan	1953	10	1
3	Pocahontas	Pocahontas	1995	20	1
4	Meeko	Pocahontas	1995	5
5	Woody	Toy Story		45	4
6	Flik	A Bugs Life	1998	5	3
7	Dot	A Bugs Life	1998	5	3
8	Sofia, the First	Forever Royal	2018	50	1

1. What will be returned by the following queries? If nothing is returned, write empty set.
   1. SELECT SUBSTRING_INDEX(movie, '\'', 1) FROM characters WHERE name='Flik';
   2. SELECT RIGHT('1:10', 2) + SUBSTRING_INDEX('1:20', ':', 1) * 60;
   3. SELECT SUBSTRING(movie, 3, 3) FROM characters WHERE name='Flik';
   4. SELECT SUBSTRING('1:10:05:678', LENGTH(SUBSTRING_INDEX('1:10:05:678', ':', 2)) + 2);