एक कतार में, A आगे से 18वें स्थान पर है जबकि B पीछे से 16वें स्थान पर है। यदि C आगे से 24वें स्थान पर है और A तथा B के ठीक मध्य में है, तो कतार में कुल कितने व्यक्ति हैं?

Among five friends Pinky, Pooja, Prachi, Neha, and Payal: Pinky is older than only Pooja. Prachi is older than both Pooja and Pinky. Also, Prachi is younger than Neha, who is not the oldest. Who is the oldest?

Suraj ranked 17th from the bottom and 13th from the top in his class. How many students are there in his class?