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Test Critical Thinking Interview Question

Test Critical Thinking Interview Question - 28 August

This is the interview puzzle asked to my friend in an interview of "blackrock".
As shown in the picture below, There is a circular car race track of 10km. There are two cars, we called them Car A and Car B. And they are at the exact opposite end to each other. At Time T(0), Both cars move toward each other at a constant speed of 100m / seconds. As we know both cars are at the same speed they will always be the exact opposite to each other.
Note, at the center, there is a bug which starts flying towards Car A at time T(0). When the bug reaches car B, it turns back and starts moving towards the car A. The speed of bug is 1m/second. After 5hours all three stop moving. 

What is the total distance covered by the bug?

For Solution : Click Here

Good Age Riddle

Good Age Riddle - 24 August

Lena Dunham , Allison Williams, and Jemima Kirke are 3 daughters of a good mathematician "Geroge".
When I asked George the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters ?

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Oldest Riddle Heard

Oldest Riddle Heard - 23 August

This is the oldest riddle that I have heard.

Once there was a man who is travelling with a Tiger , goat, and grass.
He needs to cross the river that can carry the maximum of two i.e Man + one of Tiger goat or grass. But the problem is "If he takes lion with him, the goat will eat grass and if he takes grass with him, the lion will eat goat".

How can he ensure safe delivery of all three?

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Matchsticks Equation Puzzle

Matchsticks Equation Puzzle - 22 August

You need to move four matchsticks to make matchsticks equation true.



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Smart Algebra Equation Riddle

Smart Algebra Equation Riddle - 21 August

If
Aakriti = 742
Lavesh = 622
Shruti = 620
Anmol = 522
Then,
Sonal = ?

For Solution : Click Here

Charley Wilma Killing Riddle

Charley Wilma Killing Riddle - 20 August

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

For Solution : Click Here

Strange Birthday Puzzle

Strange Birthday Puzzle - 19 August

Today, I celebrated my 32nd birthday but I was born in 1971.
How is this possible ?

For Solution : Click Here