MINDBENDER

1. The sum of four numbers is 128. If seven is subtracted from the first number, seven is added to the second number, the third is divided by seven and the fourth is multiplied by seven, then all the results are equal. What is the difference between the largest and the smallest of the original numbers? 2. What connects knife, name and pal? 3. Which Chief of the Defence Staff might see CHUNK HIT GOON? 4. Which is the odd one out: rustic, pastoral, arable, mixed? 5. Using the chemical symbols, which scandal may have involved tungsten, astatine, erbium, gallium and tellurium?