Latest Logic Riddles

#151 - Test Critical Thinking Interview Questio

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?

#152 - Good Age Riddle

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 ?

#153 - Oldest Riddle Heard

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?

#154 - Strange Birthday Puzzle

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

#155 - Charity Tennis Match Puzzle

In Dubai at the charity event, Federal and Nadal played exactly five matches. Both wins exactly an equal number of matches.

How is this possible?

#156 - Missing Rs1 Puzzle

I have Rs.50 and i spend in the way below.

#157 - Trick Statement Riddle

Anmol is looking at Nikita, but Nikita is looking at Mayank. Anmol is married, but Mayank is not. Is married person looking at the unmarried person?

A) Yes
B) No
C) Insufficient information

#158 - Robbers Coin Puzzle

Seven Robbers loot the bank and hide the coins at a deserted factory.
They decide to divide the money equally next morning. Two greedy robbers decided to cheat the others and reach the factory at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among three. Sadly again one coin left. Same thing happened for 4th 5th and the 6th robber.
However when 7th robber reached in the morning, they are able to divide the coins equally.

How many coins were there in total?

#159 - The Stairs Riddle

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

#160 - Famous Counting Legs Riddle

I am standing in California palace. The palace has five soldiers. Every soldier has five rooms. Each room has five big tigers and each tiger have five small tigers. Each tiger has four legs.

How many are there in total?