Daniel 4:7

4:7 When the magicians, astrologers, wise men, and diviners entered, I recounted the dream for them. But they were unable to make known its interpretation to me.

Daniel 5:8

5:8 So all the king’s wise men came in, but they were unable to read the writing or to make known its interpretation to the king.

Daniel 6:18

6:18 Then the king departed to his palace. But he spent the night without eating, and no diversions were brought to him. He was unable to sleep.