Rivka

Tamar

וַתִּקַּח הַצָּעִיף, וַתִּתְכָּס

וַתְּכַס בַּצָּעִיף וַתִּתְעַלָּף

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וַתָּקָם וַתֵּלֶךְ, וַתָּסַר צְעִיפָהּ מֵעָלֶיהָ; וַתִּלְבַּשׁ, בִּגְדֵי אַלְמְנוּתָהּ.

These are the only three places in all tanach where the word צָּעִיף appears

Her husband shows bad judgment with a son.  She tricks her husband using a disguise.  She gives him שְׁנֵי גְּדָיֵי עִזִּים.  It seems that he eventually agrees with her judgment.

Her husband shows bad judgment with a son.  She tricks her husband using a disguise.  He promises to give her גְּדִי-עִזִּים מִן-הַצֹּאן.

He eventually agrees with her judgment -- צָדְקָה מִמֶּנִּי

Tricking Husband

וַיִּמְלְאוּ יָמֶיהָ, לָלֶדֶת; וְהִנֵּה תוֹמִם, בְּבִטְנָהּ

וַיְהִי, בְּעֵת לִדְתָּהּ; וְהִנֵּה תְאוֹמִים, בְּבִטְנָהּ

These are the only two cases of human twins in tanach (the only other place twins are mentioned is Shir Hashirim)

וְאַחֲרֵי-כֵן יָצָא אָחִיו, וְיָדוֹ אֹחֶזֶת בַּעֲקֵב עֵשָׂו

וַיְהִי כְּמֵשִׁיב יָדוֹ, וְהִנֵּה יָצָא אָחִיו, וַתֹּאמֶר, מַה-פָּרַצְתָּ עָלֶיךָ פָּרֶץ

Unusual birth – having to do with the hand.  Competition to be first?

וַיִּקְרָא שְׁמוֹ, יַעֲקֹב

וַיִּקְרָא שְׁמוֹ, פָּרֶץ

Name based on birth incident