Replace the question mark with the correct number in the below-given picture?

A man died, leaving $10,000,000 for his widow, 5 sons and 4 daughters. Each daughter received an equal amount, each son received twice as much as a daughter, and the widow received three times as much as a son.

How much did the widow receive?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

One day, all the courtiers from Akbar's court were gathered in the assembly hall when one of them told the Emperor that all his valuables had been stolen by a thief the previous night.
This shocked the Emperor to his core as the place where that courter stayed was the most secured in the kingdom. The Emperor thought that it is not at all possible for an outsider to enter into the courtier's house and steal the valuables. Only another courtier could commit this crime. He quickly called Birbal to identify the thief.
Birbal thought for a while and successfully solved the mystery by identifying the thief in just one statement.
What did Birbal say?

How many triangles are there on the puzzle below?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA