Series 1

15 episodes · Sep 15, 2008

Series 2

8 episodes · Jul 13, 2009

Series 3

15 episodes · Apr 1, 2010

Series 4

16 episodes · Sep 6, 2010

Series 5

16 episodes · Aug 15, 2011

Series 6

16 episodes · Aug 27, 2012

Series 7

13 episodes · May 13, 2013

Series 8

13 episodes · Sep 23, 2013

Series 9

13 episodes · Apr 14, 2014

Series 10

27 episodes · Sep 1, 2014

Series 11

27 episodes · Jul 13, 2015

Series 12

37 episodes · Jul 11, 2016

Series 13

37 episodes · Jul 28, 2017

Series 14

28 episodes · Oct 22, 2018

Series 15

28 episodes · Sep 2, 2019

Series 16

28 episodes · Sep 21, 2020

Series 17

28 episodes · Jul 12, 2021

Series 18

28 episodes · Aug 29, 2022

Series 19

28 episodes · Jul 17, 2023 · 6.3

Step into a world where logic twists and perception bends – this season’s TV show challenges you to forge surprising links between seemingly disparate clues. Each episode presents a fresh puzzle, demanding viewers unravel the hidden relationships binding together unexpected eleme…

Season 20

28 episodes · Aug 12, 2024 · 6.9

Season 21

26 episodes · Jul 21, 2025 · 6.7