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

Can you find out the number that should replace the question mark with a valid reason?

A man dies of old age on his 25 birthday. How is this possible?

Which five letter word can be added at the end of below word to form a
valid word?

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4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

Solve the puzzle by telling what does below picture means.

What is the probability of choosing the correct answer at random from the options below?

a) 1/4
b) 1/2
c) 1
d) 1/4

You can move only two matchsticks in the given picture. What is the highest number you can form by doing it?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?