As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

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

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

A man is lying dead in a field where no one is around. His head is split open and his legs are disfigured. Near to him, there is an unopened package. No living organism can be found anywhere at the crime scene.

How did he die?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

In the picture given below, can you find out which digit will take place of the question mark?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?