If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

How many bananas can you eat if your stomach is empty?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Can you find a five letter word that is left with only two letters if one is removed?

Why despite killing dozens of people Charley and Wilma were not punished?