My father delivered a _________.

Which of the following sentences is grammatically correct?

S1: Swami Vivekananda was the noblest and wiser of all the speaker at Chicago conference.

S2: Swami Vivekananda was the noblest and wisest of all the speaker at Chicago conference.

M.S. Dhoni is the most wisest of all the cricketers.

Which of the following sentences is grammatically correct?

S1: Ram works hard.

S2: Ram works hardly.

Which of the following sentences is grammatically correct?

S1: You are too tall.

S2: You are very tall