Why is Saturday stronger than Monday?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

I cannot talk, but I always reply when spoken to. What am I?

People put me on the table and cut me but do not eat me. What am I?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

Which number comes next in the number series?

2, 9, 30, 93, ?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

What two things can you never eat for breakfast?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?