Genesis 5:4

5:4 The length of time Adam lived after he became the father of Seth was 800 years; during this time he had other sons and daughters.

Genesis 25:24

25:24 When the time came for Rebekah to give birth, there were twins in her womb.

Genesis 30:36

30:36 Then he separated them from Jacob by a three-day journey, while Jacob was taking care of the rest of Laban’s flocks.