From 'All writers are creative' and 'Some creative people are teachers', we cannot definitively conclude whether any teachers are writers. Teachers could be creative without being writers. The conclusion is uncertain.

Starting at origin (0,0). After 10km north: (0,10). After 6km east: (6,10). After 10km south: (6,0). Distance from origin = 6km.

M=7, A=8, T=9, H=2, E=0, M=7, A=8, T=9, I=6, C=5, S=3. For MATHS: M=7, A=8, T=9, H=2, S=3, giving 78923.

This is a series of perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36, 7²=49, 8²=64. The missing number is 49.

My mother's only brother = my uncle. My uncle's son = my cousin. Therefore, the man in the photograph is the woman's cousin.

In circular arrangement with 6 people: B opposite E means 3 seats apart. A right of B. C between D and F means F-C-D or D-C-F. Testing positions: B at 1, A at 2 (right), E at 4 (opposite). Remaining D,C,F for 3,5,6. If D at 3, C at 5, F at 6: C is left of D. If D at 6, C at 3, F at 5: F is left of D. Checking constraint 'C between D and F': F(6)-C(5)-D(3) works in circular. Left of D(3) is C(5).

Red at (1,2) blocks row 1 and column 2. Green at (2,3) blocks row 2 and column 3. Blue at (3,1) blocks row 3 and column 1. Yellow must avoid: rows 1,2,3 and columns 1,2,3 - impossible for standard placement, but (2,1) conflicts with Blue's column 1. Rechecking: (1,3) at row 1 conflicts with Red's row. (2,1) at column 1 conflicts with Blue's column. Best option avoiding maximum conflicts: (2,1).

Elegant implies grace; brutal implies cruelty. Synonymous relationship.

Differences: +1, +2, +3, +4, +5, +6. Next: 17+6=23

P is Q's son. Q is R's mother, so P is R's uncle. R is S's father, so P is S's uncle.