"How I Met Your Mother" knew how to keep its audience guessing. Welcome to MsMojo, and today we’re counting down our picks for the biggest jaw-dropping bombshells from the “How I Met Your Mother” gang and company. Our countdown includes Robin's secret past, Barney meets his dad, the Mother's fate, and more! Which “How I Met Your Mother” moment still has YOU shook? Don’t “wait for it,” tell us in the comments!

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