Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Which country gets ill every time?

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

What happened when the wheel was invented?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?