Mind Teasers : Good Science Riddle

Difficulty Popularity

Suppose there are two cogwheels in a box. The bigger wheel has twenty four teeth while the smaller one has eight. The bigger one is firmly attached on the center of the box (so it can’t turn or move) and the smaller one rotates around it.

Can you tell the number of times it will turn around the big one when comparing with the box when it turns once?
category : LOGIC | SCIENCE

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Mind Teasers : Statement Puzzle

Difficulty Popularity

Christanio Ronaldo 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 Christanio Ronaldo tell the truth?

Mind Teasers : IPS Tricky Interview Puzzle

Difficulty Popularity

Jamie looked at his reflection on the window mirror of the 45th floor. Driven by an irrational impulse, he made a leap through the window on the other side. Yet Jamie did not encounter even a single bruise.

How can this be possible if he did neither landed on a soft surface nor used a parachute?

Mind Teasers : Famous 13 Cave Logic Problem

Difficulty Popularity

A thief was running from the police after the biggest theft the town saw. He took his guard in one of the thirteen caves arranged in a circle. Each day, the thief moves either to the adjacent cave or stay in the same cave. Two cops goes there daily and have enough time to enter any two of the caves out of them.

How will the cop make sure to catch the thief in minimum number of days and what are the minimum number of days?
category : LOGIC

Mind Teasers : Unique Brain Teaser

Difficulty Popularity

It takes ten minutes to fry a steak (five minutes for each side). You are frying the steaks in a pan that can accommodate only two steaks at one time. What is the least amount of time by which you can fry all the three steaks you have?

Mind Teasers : Infoedge Interview Aptitude Problem

Difficulty Popularity

On a magical-intellectual land of gpuzzles , all the animal are rational(real smart).

There are six leopards and one sheep.
Leopard can eat sheep but since as the land is magical, the leopards who eats the sheep , turns into sheep and then can be eaten by the remaining leopard(s).

If we leave them for some time then how many sheep and leopard will be there , when we come back ?

Mind Teasers : Playing Cards Logic Riddle

Difficulty Popularity

Dr. Watson has a new card puzzle for Sherlock Holmes. He picks four cards out of the pack of 52 cards and lays them face down on the table. He offers four hints to Sherlock.
1) The left card can’t be greater than the one on right.
2) The difference between the first card and third card equals to eight.
3) None of the Ace is present
4) No face card has been included i.e. no queen king and jacks.
5) The difference between the second and fourth card is 7.
Sherlock smiles and tells all the four cards to Dr. Watson.

Can you tell the four cards?
category : LOGIC

Mind Teasers : Famous Water Jug Problem

Difficulty Popularity

You live in Dubai and had an infinite supply of oil and a 5 liters and 3 liters jar,
how would you measure exactly 4 liters (of-course in minimum numbers of step) ?
category : LOGIC | MEASURE

Mind Teasers : IAS Interview Problem

Difficulty Popularity

I need to divide numbers from 1 to 9 into two group such that sum of numbers in one group is equal to the sum of other group.
Note : 6 cannot be flipped over to make it 9.
category : LOGIC

Mind Teasers : Hard Ten Boxes Interview Puzzle

Difficulty Popularity

You have ten boxes and an electronic weighing machine. In those ten boxes, you have chocolates. Each chocolate weigh 20 grams. But in one box the chocolates are defective and each weigh 19 grams exactly.

Now you can weigh in the electronic weighing machine but you can use that machine just once. How will you find out which box has the defected chocolates.
category : LOGIC

Mind Teasers : Children Age Football Count Puzzle

Difficulty Popularity

At a local club party at Chelsea club house, four ladies were there with their four children who aged 1, 2, 3 and 4. Also, these children have one, two, three and four footballs with the different order.

We know the below facts:
Aina has more footballs that his age.
Kalas is older than Zouma.
One child has the same number of footballs as his age.
Ake has fewer footballs than Kalas.
Child aged 3 has two footballs.

Ake is the youngest.

Can you determine the age of the children and the number of football they have?

category : MATHS

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