New King James Version
So they were all amazed and perplexed, saying to one another, “Whatever could this mean?”

King James Bible
And they were all amazed, and were in doubt, saying one to another, What meaneth this?

American Standard Version
And they were all amazed, and were perplexed, saying one to another, What meaneth this?

Berean Study Bible
Astounded and perplexed, they asked one another, “What does this mean?”

Douay-Rheims Bible
And they were all astonished, and wondered, saying one to another: What meaneth this?

English Revised Version
And they were all amazed, and were perplexed, saying one to another, What meaneth this?

World English Bible
They were all amazed, and were perplexed, saying one to another, "What does this mean?"

Young's Literal Translation
And they were all amazed, and were in doubt, saying one unto another, 'What would this wish to be?'

Acts 2:12 Additional Translations ...