Can anyone find the error in this MySQL code? (Beginner)

Question

CREATE TABLE `students`.`studentinfo` (
id int,
name varchar,
age int
);
ENGINE=InnoDB
COMMENT = 'test';

I'm using MySQL workbench and I'm trying to create a table called students. However, my code gives the error message

Operation failed: There was an error while applying the SQL script to the database.
Executing:
CREATE TABLE `students`.`studentinfo` (
id int,
name varchar,
age int
);
ENGINE=InnoDB
COMMENT = 'test';

ERROR 1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ',
age int
)' at line 3
SQL Statement:
CREATE TABLE `students`.`studentinfo` (
id int,
name varchar,
age int
)

I tried to solve the problem by removing the table, like this:

CREATE TABLE `students`.`studentinfo` (
)
ENGINE=InnoDB
COMMENT = 'test';

Even then, it still doesn't work! It gives the same error message:

Operation failed: There was an error while applying the SQL script to the database.
Executing:
CREATE TABLE `students`.`studentinfo` (
)
ENGINE=InnoDB
COMMENT = 'test';



ERROR 1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')
ENGINE=InnoDB
COMMENT = 'test'' at line 2
SQL Statement:
CREATE TABLE `students`.`studentinfo` (
)
ENGINE=InnoDB
COMMENT = 'test'

Answer 1

Varchar requires a length:

CREATE TABLE `students`.`studentinfo` (
id int,
name varchar(100),
age int
)