Answer: Katie Ledecky of USA won the first individual gold medal in 400m freestyle with world record.
Answer: Freestyle wrestler Sakshi Malik won bronze medal in 58Kg category.
Answer: Sakshi Malik at 2016 summer olympics.
Answer:Total 117 athletes at Rio from India. In previous olympics number of participants from India was 83.
Answer: P. V. Sindhu (Pusarla Venkata Sindhu) won silver medal in women's singles.
Answer: World peace and Environment.
Answer: Tokyo, Japan.
Answer: Sachin Tendulkar.