Keep scrolling down for answers and more stats ...
1. Night Caller
Eric Edgar Cooke: killed at least eight people and attempted to kill many more in and around Perth, Australia between 1959 and 1963
Real
Made up
2. Lagos Maniac
Real
Made up
3. Viennese Housemaids Killer
Hugo Schenk: Conman who killed four maids in Austria in 1883
Real
Made up
4. Father Bluebeard
András Pándy: also known as "Vader Blauwbaard" (Father Bluebeard); Hungarian immigrant convicted of the murder and rape of his two wives and four children in Brussels between 1986 and 1990
Real
Made up
5. The Butcher of Murmansk
Real
Made up
6. The Garbage Man
Real
Made up
7. Boozing Barber
Gilbert Paul Jordan: Killed between eight and ten women by alcohol poisoning in Vancouver. He died in 2006
Real
Made up
8. Singing Serial Killer
K P "Ripper" Jayanandan (born 1968): also known as the "Singing Serial Killer"; killed seven people during robberies in India
Real
Made up
9. The Night Bat
Gholamreza Khosroo Kurdieh: Murdered nine women in Tehran in 1997, burning the bodies afterwards; executed 1997
Real
Made up
10. Aerosol Killer
Real
Made up
11. The Witch of Kilkenny
Alice Kyteler: Alleged witch who poisoned four husbands in the 14th century; fled to England, fate unknown
Real
Made up
12. The Joyful Assassin
Real
Made up
13. Demon of Danzig
Real
Made up
14. Twitter Killer
Takahiro Shiraishi: Murdered nine women and young girls at his apartment in Zama, Japan that he met through social media after making bogus suicide pacts with them
Real
Made up
15. Sugarcane Serial Killer
Thozamile Taki: Robbed and killed ten women in KwaZulu Natal and three in Eastern Cape, dumping their bodies in sugarcane and tea plantations