Lee Mack presents the game show where the questions aren't about general knowledge but logic, brainpower and common sense. 100 contestants begin each edition, who'll face the final question - which only 1% of the population can get right.
Before the show begins, members of the British public are asked a series of questions. The questions they are asked are designed not as a test of their knowledge, but instead as a test of their common sense, logic and intelligence. The number of people who get each question right determines the category in which the question is placed - for example, if about half of the public can give the correct answer to the question, it will be categorised as a 50% question. Some of the questions they are asked will end up featuring on the show.
The show begins with 100 contestants in the studio who each receive a stake of £1,000. They are then asked a series of questions that increase in difficulty as the show progresses. The first question they are asked is a 90% question, one that 90% of the public were able to answer correctly. The contestants are given 30 seconds to enter their answer into their tablet, then the correct answer, along with an explanation of how it is worked out, and the number of contestants who answered incorrectly are revealed. When a contestant answers incorrectly, they are eliminated from the game and their £1,000 stake enters a prize pot that the remaining contestants have a chance to play for at the end of the game. The subsequent questions have the percentage of the public that were able to answer them correctly reduce in decrements of 10%.
When the remaining contestants have reached the 50% question, they receive the option to "pay for a pass", which lets them choose to opt out of answering one of the subsequent questions, in return for their £1,000 stake being transferred to the prize pot. From this question onward, the question decrements are changed to 5% until the 5% question is reached and asked. When the remaining contestants have reached the 30% question, any contestant that has not yet paid for a pass is given an offer to leave the game and take their £1,000 stake.
If any contestants correctly answer the 5% question, they then come down to the studio floor in the centre and are presented with two options - they can either leave the game at that point and share in a pool of £10,000 or attempt to answer one final question, which is the 1% question, for a share of the prize pot. If all of the contestants are eliminated at or before the 5% question, the last contestants to be eliminated still have the option of answering the 1% question for a chance to win a share of the prize pot. To win their share of this pot (plus their £1,000 stake if they have not paid for a pass), contestants have to come up with the correct answer to a question that only 1% of the public were able to get right. Any contestant who elects to answer the 1% question and gets it wrong will leave with nothing, unless they have not paid for a pass and correctly answered every prior question, in which case they leave with their £1,000 stake. The highest prize achievable is £100,000, an amount that can be reached if no contestants take their money before the 30% question, all but one of the contestants are either eliminated or pay for a pass and the one contestant who hasn't passed on any questions is the only one to correctly answer the 1% question.