Question on national symbols

1- The state emblem of India adopted from the Sarnath Lion Capital of Ashoka. In the original, there are four lions, standing back to back, mounted on an abacus with a frieze carrying sculptures in high relief of an elephant, a galloping horse,and a lion separated by intervening wheels over a bell-shaped lotus.Which one of the following is fourth sculpture...?

    a) a bull
    b) a Dear
    c) a Buffalo 
    d) a Tiger

2-The song Vande Mataram,It has an equal status with Jana-gana-manawas was originally composed in Sanskrit by  ?
    a) Rabindranath Tagore
    b) Bankimchandra Chatterji
    c) Bankimchandra Chatopadhyaya
    d) Rabindranath Thakur

3-Lotus, is the national flower of India.its scientific name is ?
    a) Cypripedioideae
    b) Butea monosperma
    c) Tagetes erecta
    d) Nelumbo Lucifera

4-The National flag is a horizontal tricolour of deep saffron (kesari) at the top, white in the middle and dark green at the bottom in equal proportion. The ratio of width of the flag to its length is ?
    a) Two to Three
    b) Three to Four
    c) Two to Four
    d) Four to Five

5-The national calendar is based on the Saka Era with Chaitra as its first month and a normal year of 365 days was adopted from  ?
    a) 2 March 1957
    b) 22 March 1957
    c) 22 March 1947
    d) 2 March 1947

6-The song Jana-gana-mana, composed originally in Bengali by Rabindranath Tagore, was adopted in its Hindi version by the Constituent Assembly as the national anthem of India on 24 January 1950. It was first sung in the Calcutta Session of the Indian National Congress on the Date ?
    a) 17 December 1931
    b) 27 December 1931
    c) 27 December 1911
    d) 17 December 1911