'Half' in the Bible

So Abram brought all these to Him and cut them down the middle, and laid each half opposite the other; but he did not cut the birds.

When the camels had finished drinking, Eliezer took a gold ring weighing a half-shekel and two bracelets for her hands weighing ten shekels in gold,

Now Joseph was the ruler over the land, and he was the one who sold [grain] to all the people of the land; and Joseph’s [half] brothers came and bowed down before him with their faces to the ground.

Now, therefore, please let your servant (Judah) remain here instead of the youth [to be] a slave to my lord, and let the young man go home with his brothers.