Two sisters face off against a technician and his friend to solve brain teaser puzzles.

Charmaine Walker and Katrina Jackson face off against April Macie and Joey Fatone; answering increasingly difficult brain teasers.

A kickboxer and her high school friend face off against a woman who graduated college at 19 and her twin brother.

Musically talented kids face off against each other.

Two choir boys face off against two friends who love to travel.

A pair of models face off against a bartender and his roommate.

A couple with a 2-year-old toddler faces off against a married couple with a 6-week-old baby.

Celebrities Kent Faulcon and Cocoa Brown face off against Kiki Haynes and Jason Oliver.

Justine Marino and KJ Smith face off against Simone Shepard and Keraun Harris.

Both teams go on blind dates with their teammates; they get to know each other while solving puzzles.

A recreational therapist and her friends face off against a former Naval intelligence officer and his friend.

Friends and neighbors face off against twins who say they can communicate through telepathy.

Daddy's girls face off against Mama's boys.

Alien believers face off against ghost believers.

An Army and a Navy veteran compete against a musician and her rapper friend.

High school sweethearts face off against a karate black belt and his cousin.

Two friends who met through their church mission face off against a backup dancer and her piano teacher boyfriend.

Team Hunee faces off against Team Pyson.

A stay-at-home dad and his friend vs. a woman who collects wigs and her friend.

Hockey fans face off against basketball fans.

A veteran and her friend face off against a competitive eater and his friend.

A ventriloquist and her teacher face off against two cousins who love playing video games.

A father and his son face off against a mother and her daughter.

Mirror-image twin sisters face off against fraternal twin brothers.

A songwriter and her husband face off against a flight attendant and her friend.

A cheerleader and her cousin who wants to be a vet faces off against a volleyball player and her brother.

Two friends face off against a man who collects random facts and his friend.

A waitress and her friend face off against a big fan of Ben's.

MMA fighters face off against professional wrestlers.

A Yale graduate and her friend face off against Catholic school friends.

Kanye haters face off against Kanye fans.

The Backstreet Boys fans face off against NSYNC fans.

A budget-conscious married couple faces off against high-rolling business partners.

A police officer and his cousin face off against a germaphobe and his co-worker.

Two teams of best friends compete.

USC fans face off against UCLA fans.

A married couple faces off against a woman who went to four different community colleges and her sister.

Two teams face off to answer difficult puzzles.

A tour manager and her friend face off against a bartender and his former co-worker.

Hipsters face off against Fashionistas.

A substitute teacher and her friend face off against a man who has a transgender cat and his roommate.

A military vet and his wife compete against best friends.

Both teams are on blind dates with their teammates and they compete while getting to know each other.

GSN's IDIOTEST and host Ben Gleib are celebrating an anti-Valentine's Day with a special episode featuring four of Gleib's ex-girlfriends, who've come together not only to settle old scores, but also hoping to walk away with $10,000. This beautifully awkward episode illustrating what happens when a game show host's former flames join him on-stage.

A former spelling bee champion and her cousin face off against a juggler and his trilingual girlfriend.

A pastor and his wife face off against a Peace Corps worker and his friend.

Obama impersonator and his girlfriend face off against sisters who work together at a theme park.

Twin brothers face off against two sisters.

Millennials face off against baby boomers.

Comics Amir K and Jo Koy face off against Zainab Johnson and Sydney Castillo.