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CNN anchors Ali Velshi and Richard Quest will debut a new cross-channel segment on their respective programs tomorrow, “Quest & Ali,” or “Q&A.”

The segment will air simultaneously on “CNN Newsroom” on CNN, and “Quest Means Business” on CNN International.

“Q&A” will feature a single topic, submitted by a viewer through Twitter, Facebook or CNN.com. Each host will have one minute to explain what they know about the subject, followed by a test conducted by a team of CNN producers.

Whichever hosts gets more questions correct, wins.

The segment will air live Thursdays during the 2 p.m. ET hour, with the first installment airing tomorrow at approximately 2:20 p.m.

Viewers can submit questions using the hashtag #CNNQandA, and at CNN.com/ali or CNN.com/QMB.

Update: Velshi tweets that the first Q&A topic will be wheat prices. Why are they soaring?