When we see 2 but call 10?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

You are a prisoner sentenced to death. The Emperor offers you a chance to live by playing a simple game. He gives you 50 black marbles, 50 white marbles, and 2 empty bowls. He then says, 'Divide these 100 marbles into these 2 bowls. You can divide them any way you like as long as you use all the marbles. Then I will blindfold you and mix the bowls around. You then can choose one bowl and remove ONE marble. If the marble is WHITE you will live, but if the marble is BLACK... you will die.'

How do you divide the marbles up so that you have the greatest probability of choosing a WHITE marble?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

A man was just doing his job when his suit was torn. Why did he die three minutes later?

Find the last number in the series below:

voN luJ yaM raM ---

what one word does the below rebus identifies?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

How can you make a TV, a bed, a dog, and a car liquid?