Information and past papers for the UKMT Junior Maths Challenge, Intermediate Maths Challenge, Senior Maths Challenge, Olympiad and other competitions can be found at https://www.ukmt.org.uk/ . There are past papers and solutions for recent papers there, and others are available to buy (so I don’t post any here!). I have compiled below grade boundaries for each challenge:
Specially curated from the UK Mathematics Trust’s catalogue of puzzles, most of these problems can be tackled using no more than a little numerical knowledge, logical thinking and native wit. Including interludes of crossnumber conundrums and shuttle challenges, space for your working out and a handy glossary for those obscure mathematical terms, this book has everything you need to solve captivating problems all year round.
And if you want a real challenge, or to see some amazingly skilled maths challenge competitors (Junior level) check out this video. It’s like ‘Are you smarter than a 10 year old?’ but with the world’s smartest kids doing maths!