Which four-figure number contains four different digits and meets these criteria? The first digit is twice the value of the fourth digit and two more than the second digit. The third digit is one more than the first digit and four more than the fourth digit. Answer with a natural number.
The top set of six numbers has a relationship to the set of six numbers below. The two sets on the left have the same relationship as the two sets on the right. Which set of numbers replaces the question marks? Choose from the options labelled in the figure.
By adopting a more consensual leadership style than his ___, he sought to restore party unity on integration with Europe and other issues. Which word belongs in the gap?
Which set of diagrams should replace the question marks? (Two rows of black and white circles are shown; the second row of the right set is hidden.) Choose from the options labelled in the figure.
The letters A B C D E F G H are written in a row. What letter is three to the left of the letter immediately to the right of the letter which is four to the right of the letter B?
The letters A B C D E F G H are written in a row. What letter is two to the right of the letter which comes five to the left of the letter that comes two to the right of the letter which is three to the left of the letter H?
An electrical circuit wiring four lights depends on switches A, B, C and D. A toggles lights 1 and 2, B toggles lights 2 and 4, C toggles lights 1 and 3, D toggles lights 3 and 4 (on becomes off and off becomes on). Switches A, C, D and B are thrown in turn and Figure 1 becomes Figure 2. One switch is not working. Which one?
What number should replace the question mark? (Three triangles each have a top number, bottom-left number and bottom-right number and a centre number: 14, 3, 12 give 5; 28, 9, 7 give 30; 31, 2, ? give 4.) Answer with a natural number.
Cuttlefish have some ___ importance, not only for their flesh, which is eaten in many countries, but also for the bone of their shell and for the ink they eject to cloud the water as protection from their enemies. Which word belongs in the gap?