useless trivia: What Word Means: The Herb Bennet?

Questions

How was 'Abu Yusuf Ya'qub ibn Is-haq ubn as-Sabbah ibn 'omran ibn Ismail al-Kindi' better known?

In a period of 400 years how many times does the 1st of January fall on a Sunday?

In the period 978-1016 England was ruled by which 'Unready' king?

The book 'Wamyouruijoshou' was the first to use what word?

The name 'Lego' comes from which Danish words?