Weekly Brainteasers

  • Brainteaser 14/01/2019
    Do you think you can work for GCHQ? Try this weeks brainteaser. What is the only number in English that, when spelled out, has all its letters in alphabetical order?
  • Do you think you're smart enough to work for GCHQ? Do you think you're an expert code breaker? Try this teaser to see if you've got what it takes.