MINDBENDER

1. A quarter of a certain number is 25 less than one third of 16 more than that certain number. What is that certain number? 2. What connects commission, tag and war? 3. Which Leader of the House of Commons might show GRISLY CHAGRIN? 4. Which is the odd one out: National Assembly, House of Commons, State Duma, Bundesrat? 5. Starting with I, add a letter and shuffle to make a new word each time until you reach MINSTREL.