Genesis 5:21

5:21 When Enoch had lived 65 years, he became the father of Methuselah.

Genesis 7:20

7:20 The waters rose more than twenty feet ¹  above the mountains. ² 

Genesis 11:12

11:12 When Arphaxad had lived 35 years, he became the father of Shelah.

Genesis 47:2

47:2 He took five of his brothers and introduced them to Pharaoh. ³ 

[7:20]  ¹ tn Heb “rose fifteen cubits.” Since a cubit is considered by most authorities to be about eighteen inches, this would make the depth 22.5 feet. This figure might give the modern reader a false impression of exactness, however, so in the translation the phrase “fifteen cubits” has been rendered “more than twenty feet.”

[7:20]  ² tn Heb “the waters prevailed fifteen cubits upward and they covered the mountains.” Obviously, a flood of twenty feet did not cover the mountains; the statement must mean the flood rose about twenty feet above the highest mountain.

[47:2]  ¹ tn Heb “and from the whole of his brothers he took five men and presented them before Pharaoh.”