You should only have to pay once to use the questions. The game needs to be online to verify you have bought the questions, but once it has done that, it should be stored locally and you should not need to be online each time you play to use them.
Try the following;
- Make sure your device is currently connected to the internet.
- Restart your device (power off then back on).
- Go to Settings->Applications->Manage all applications
- Swipe up till you find "Eggheads" and tap on it.
- Tap on "Force Stop" then "Clear Cache".
- Tap on the system "Back" arrow to go back to "Manage All Applications"
- Select “All Applications" from the dropdown at the top (usually set to “Third-Party Applications).
-
Find “Appstore” in the list and tap on it.
- Tap on “Force Stop” and “OK” on the Force Stop warning dialog.
- If the “Force Stop” does not stay greyed out, i.e. you can tap on it and it brings up the dialog, go to the Home screen and repeat the previous steps.
- Tap on “Clear Data” and then “OK" on the Delete Data warning dialog.
- Go back to the home screen and run the game.
There might be some additional things to try from the Amazon help site
here.