Can i revisit challenge questions that i missed?

Question

Can i revisit challenge questions that i missed?

Answer 1

you can, but within a time limit, after which it will expire.

Answer 2

thanks for replying. can I ask how? I don't see any means to it

Answer 3

in the unified app click the bolt(flash) sign. in the individual app click the play bar on the top right corner of the screen.

Answer 4

I click on the bolt, there I see the previous challenge. I click on that but there is no button to click for me to see the questions again