John 3:9

Nicodemus answered, "How can that be?"

The Jews then wrangled with one another, saying, "How can he give us his flesh to eat?"

Now many of his disciples, on hearing it, said, "This is hard to take in! Who can listen to talk like this?"

"How can this be?" said Mary to the angel, "I have no husband."

He began to see and said, "I can make out people, for I see them as large as trees, moving."

Nicodemus said to him, "How can a man be born when he is old? Can he enter his mother's womb over again and be born?"

Treasury of Scripture Knowledge

Nicodemus answered and said unto him, How can these things be?

for every one who asks receives, the seeker finds, the door is opened to anyone who knocks.

So they asked him, "How were your eyes opened?"