'Able' in the Bible

God has given into your hands the chiefs of Midian, Oreb and Zeeb; what have I been able to do in comparison with you? And when he said this, their feeling about him became kinder.

Then they said to him, Now say Shibboleth; and he said Sibboleth, and was not able to say it in the right way; then they took him and put him to death at the crossing-places of Jordan; and at that time forty-two thousand Ephraimites were put to death.

And Samson said, Now I have a hard question for you: if you are able to give me the answer before the seven days of the feast are over, I will give you thirty linen robes and thirty changes of clothing;

But if you are not able to give me the answer, then you will have to give me thirty linen robes and thirty changes of clothing. And they said to him, Put your hard question and let us see what it is.

And he said, Out of the taker of food came food, and out of the strong came the sweet. And at the end of three days they were still not able to give the answer.

Who were left-handed, able to send a stone at a hair without error.