Who knows one hundred forty?
Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will:
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Abraham's age when Yitzhak got married (Yitzhak was 40 when he married Rivka. בראשית כ"ה, כ)
According to B'rachos 55 amud 1, Yosef was the first to die among Yaakov's sons. From Yosef's death (at 110 after he'd been born when Yitzchak was 151, so 261 years into the 400-year exile) until the second year of travel through the desert was 140 years. That's the period described in the book of Sh'mos: from the death of Yosef, his brothers, and "that entire generation" until the mishkan was erected.