The short answer is you cannot unlock all three of those achievements on a single character (without rooking the character), but you can display all of three of them on a single character.
Note that you can also select achievements you have accomplished with other characters of this account.
Tibia Manual 5.6.3 "How to Display Achievements?"
All achievement titles are account-based. This means if one character on your account unlocks the achievement, any character can display that achievement in their character page. To display all three of those achievements on a character page, simply use three characters on your account and obtain each achievement using those characters (1 achievement - 1 character). You can easily verify that by creating a new character on your account - it will already have the same achievement titles unlocked as your other characters on that account.
Please note that it only applies to displaying achievements on the character page. The achievement points are character-based and only a character that actually unlocked the achievement will get the achievement points.