Can you give me some examples of difficult adi theory test questions?

What are cord markings, and where would you find them?
What is the maximum authorised mass of a hydrogen-powered vehicle that may be driven on a Category B licence?
What is the maximum authorised mass of a trailer that may be towed by a Category B licence holder?
What is the maximum authorised mass of a vehicle-and-trailer combination that may be driven on a Category B licence?
When giving CPR to an adult, what is the correct ratio of chest compressions to rescue breaths?
What should you do if an automated external defibrillator (AED) tells you that no shock is advised?
What is the recommended depth and rate of chest compressions when performing CPR on an adult?
What is the minimum unmarked headroom normally provided beneath a bridge over a public road?
What is the maximum authorised mass of a vehicle that may be driven on a Category B licence when powered by an alternative fuel?
What is the maximum authorised mass of an unbraked trailer that may normally be towed by a car?