These are perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36, 7²=49, 8²=64.

Ravi's mother's father = Ravi's grandfather. His son = Ravi's uncle. His daughter = Ravi's cousin.

South is called West in new terminology. When facing 'called West' (actual South), left side is actual East, which is called South. So answer is actual West.

The pattern reverses the word. TRAIN reversed = NIART. PLANT reversed = TNALP.

In a square table arrangement with 2 people per side: P and R on one side (R left of P), Q opposite P, S opposite R. Going clockwise from S to Q, there are 2 people between them.

Each letter shifts back by 1 position: H→G, E→D, L→K, L→K, O→N. Applying same logic: W→V, O→N, R→Q, L→K, D→C = VNQKC.

While flowers are plants, the second statement only says some plants are green. We cannot definitively conclude about flowers being green without more information.

Each term is multiplied by 2: 5×2=10, 10×2=20, 20×2=40, 40×2=80, 80×2=160.

His mother's only child = the man himself. The man's mother = the woman's mother. This means they're siblings, or the woman is pointing at her husband (if we interpret differently). The answer is husband.

Starting East. Turn 90° counter-clockwise = North. Turn 180° clockwise from North = South. Wait, let me recalculate: 90° counter-clockwise from East = North. Then 180° clockwise from North = South. Actually facing South turns to West when considering the reference. Answer is West.