Number Puzzles - General Questions

Find the missing number. In each figure, the centre number is related to the four outer numbers in the same way. Figure 1: outer 2, 5, 6, 9 → centre 64 Figure 2: outer 5, 6, 9, 2 → centre ?

Find the missing number. In each figure, the centre number is related to the four outer numbers in the same way. Figure 1: outer 7, 4, 8, 4 → centre 60 Figure 2: outer 4, 8, 4, 7 → centre ?

Find the missing number. In each figure, the centre number is related to the four outer numbers in the same way. Figure 1: outer 5, 2, 8, 9 → centre 82 Figure 2: outer 2, 8, 9, 5 → centre ?

If 3 ★ 6 means 3 × 6 + 3, what is 6 ★ 13?

The sum of three consecutive numbers is 114. What is the largest of them?