The 50-50 game runs on a two-hour rotation, and you can only play it once every two hours. That does not pay any attention to whether it is easy, intermediate or difficult, only whether you have played the game in the current two-hour period. The level of difficulty changes, so Intermediate is only available for two hours, followed by a four hour interval when the game is set at another level.
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(Editor in Humanities, Religion, Literature and For Children)
That's all, folks!