Double Dip

Double Dip was a new lifeline introduced in the U.S. in 2004 during Who Wants to Be a Super Millionaire. In 2008, it replaced 50:50 for the clock format, but was discontinued in 2010 when the Shuffle format began.

Usage
This lifeline allowed the contestant to make two guesses on a question, but required them to play out the question, forbidding them to walk away or use any further lifelines. If the first guess is correct, the contestant will not make the second one.

On Super Millionaire, the host would ask the contestant for confirmation that they want to use the lifeline.

On the clock format of U.S. show, the clock would stop to let the contestant make their first guess. If the guess was incorrect, the host will give a brief explanation and the clock will resume. Contestants who fail to make their second guess before the clock expires will be penalized for getting the question wrong (normally, they would be forced to walk away).

Trivia

 * One time, a contestant was given the question, "How many U.S. states have names that begin with the word 'New'? A: 2, B: 3, C: 4, D: 5" (the correct answer was 4). He decided to use his Double Dip and his first guess was 3, which was wrong. As the clock expired, he decided to walk away, but was then explained by Meredith that he was not allowed to do so due to the use of Double Dip. He ended up winning $1,000.