Faisal and Daniel, Sara and Kaitlin, and Vicki and Richard take part in the first edition.

Ross and Rebecca, Georgia and Jackie, and Lucy and Jade take on The Riddlemaster and attempt to solve a series of riddles and make it through to the high stakes final.

Ranvir Singh hosts the rapid and ruthless quiz as contestants Duncan and Glen, Sophie and Molly, and Kay and Hashim take on Riddlemaster Henry Lewis in a bid to solve his riddles.

Ranvir Singh hosts the rapid and ruthless quiz as contestants Zahraa and Zaynab, Michael and Angela, and Tom and Bea take on Riddlemaster Henry Lewis in a bid to solve his riddles.

Ranvir Singh hosts the rapid and ruthless quiz as contestants Trevor and Cieron, Amy and Shiela, and Abdullah and Umer take on Riddlemaster Henry Lewis to try to solve his riddles.

Ranvir Singh hosts the rapid and ruthless quiz as contestants Chikamso and Obinna, Saifo and Kakul, and Sadie and Sam take on Riddlemaster Henry Lewis to try to solve his riddles.

Ranvir Singh hosts the ruthless quiz as contestants Sarah and Margaret, Kris and Matt, and Michael and Michelle take on Riddlemaster Henry Lewis in a bid to solve his riddles.

Ranvir Singh hosts the ruthless quiz as contestants Mike and Michelle, Heather and Jamie, and Zaki and Harpreet take on Riddlemaster Henry Lewis in a bid to solve his riddles.

Ranvir Singh hosts the rapid and ruthless quiz as contestants Hasan and Rabiya, Lauren and Alex, and Holly and Dawn take on Riddlemaster Henry Lewis in a bid to solve his riddles.

Quiz hosted by Ranvir Singh in which Nuala and Lizzie, Gavin and Dan and Roopal and Aashna take on Riddlemaster Henry Lewis as they attempt to answer general knowledge questions and confusing conundrums, with only one team making it through to the high-stakes final with a chance to win a cash prize.

Quiz hosted by Ranvir Singh in which Dave and Melanie, Faye and Keir and Belinda and Claire take on Riddlemaster Henry Lewis as they attempt to answer general knowledge questions and confusing conundrums, with only one team making it through to the high-stakes final with a chance to win a cash prize.

Ranvir Singh hosts the quiz where contestants take on the Riddlemaster in a bid to solve his teasers. How will Zak and Robbie, Janice and Mya and Debbie and Colin get on?

Quiz hosted by Ranvir Singh in which contestants Ellie and Ewan, Terry and Angela and Tish and Stefan take on Riddlemaster Henry Lewis as they attempt to answer general knowledge questions and confusing conundrums.

Ranvir Singh hosts as Amy and Tom, Louis and Ben, and Thisara and Dion take on Riddlemaster Henry Lewis to answer general knowledge questions and confusing conundrums, with only one team making it through to the high-stakes final with a chance to win a cash prize.

Quiz hosted by Ranvir Singh in which Denise and Anna, Nafeesah and Ismail and Ilana and Cam take on Riddlemaster Henry Lewis as they attempt to answer general knowledge questions and confusing conundrums, with only one team making it through to the high-stakes final with a chance to win a cash prize.

Quiz hosted by Ranvir Singh in which Pete and Matt, Chris and Ann and Dalia and Sally take on Riddlemaster Henry Lewis as they attempt to answer general knowledge questions and confusing conundrums, with only one team making it through to the high-stakes final with a chance to win a cash prize.

Ranvir Singh hosts the quiz where contestants take on Riddlemaster Henry Lewis in an attempt to solve a series of riddles. How will Steve and Ady, Jane and Steve, and Gemma and Izzy cope under pressure?

Josh and Chloe, Jackie and Emma, and Timi and Chidera take part in Ranvir Singh's quiz, but it remains to be seen how they cope when they take on Riddlemaster Henry Lewis.