I asked a question by 9:30 am (IST) and cannot ask another now at 4:00 pm. The error show that we cannot ask two questions in 20 mins. However, the error is incorrect.
I assume this is caused by other accounts (of yours?) using the same IP address:
If you’re a new user, with reputation below 100:
- You may only post 1 question every 20 minutes
- You may only post 1 answer every 3 minutes
This is tracked at the IP address level, so multiple posts from the same IP, even as different “users”, will still be blocked.