1. Matiri train runs between which two countries? – Kolkata and Dhaka
2. What is the minimum age to be a member of Lok sahbha? – 25 years
3. During hibernation frog respires through – Skin
4. Urine gets stored in – Urinary Bladder
5. NSDL stands for – National Securities Depository Limited
6. What are the constituents of a nucleus? – Proton and Neutron
7. How is a president elected?= Single transferable vote
