• Views : 20k+
• Sol Viewed : 10k+

# Mind Teasers : Number Series Puzzle

Difficulty Popularity

In an entrance test, Deepika came across a mathematical patter problem.
If
6 / 7 = 2
3 / 9 = 7
8 / 2 = 6
Then
4 / 5 = ?
She was able to solve it in less than a minute. Can you?

Discussion
Suggestions
• Views : 80k+
• Sol Viewed : 20k+

# Mind Teasers : Crossing Bridge Brain Teaser

Difficulty Popularity

Four friends need to cross a dangerous bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

• Views : 40k+
• Sol Viewed : 10k+

# Mind Teasers : What Do you See - Brick Optical Illusion Riddle

Difficulty Popularity

What except brick can you see in the picture below?

• Views : 50k+
• Sol Viewed : 20k+

# Mind Teasers : Logic Number Sequence Puzzle

Difficulty Popularity

Solve this logic number sequence puzzle by the correct digit
8080 = 6
1357 = 0
2022 = 1
1999 = 3
6666 = ?

• Views : 70k+
• Sol Viewed : 20k+

# Mind Teasers : Tricky Password Mystery Problem

Difficulty Popularity

A brother wants to use his brother's desktop computer. When he opens it, he finds out that it is password protected. Now, he clicks on the hint and the following appears in front of him:

1 Jug 2 Birthdays 3 Fights 4 Cars 2 Laptops 1 Watch

He is left confused entirely. He has no clue. Can you help him with the password?

• Views : 50k+
• Sol Viewed : 20k+

# Mind Teasers : Movie Pictogram Rebus

Difficulty Popularity

Which movie name is hidden in the pictogram rebus below?

• Views : 50k+
• Sol Viewed : 20k+

# Mind Teasers : The Hundred Number Puzzle

Difficulty Popularity

We can create number 100 by using all numbers, i.e.0123456789 and mathematical operators (+/-) in many ways.
Example
98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition that the use of the number 21 is the must. Then there are only a few solutions.

One of such solution is:
98 - 7 - 6 - 5 - 4 + 3 + 21 = 100

Can you tell any other solution?

• Views : 50k+
• Sol Viewed : 20k+

# Mind Teasers : MatchStick Squares Count Puzzle

Difficulty Popularity

Can you count the number of squares in this matchstick puzzle below?

• Views : 90k+
• Sol Viewed : 30k+

# Mind Teasers : Popular Interview Problem

Difficulty Popularity

I have two rectangular bars.

They have property such that when you light the fire from one end , it will take exactly 60 seconds to get completely burn.
However they do not burn at consistent speed (i.e it might be possible that 40 percent burn in 55 seconds and next 60 percent can burn in 10 seconds).

Problem is : How do you measure 45 seconds ?

• Views : 80k+
• Sol Viewed : 20k+

# Mind Teasers : Smart Trick Teaser

Difficulty Popularity

Five girls were seen struggling while trying to get under the same small umbrella and yet, all five of them managed to remain dry completely?

How can it be true?

• Views : 80k+
• Sol Viewed : 20k+

# Mind Teasers : Classic Five Tablet Puzzle

Difficulty Popularity

Roy was suffering from severe headaches. He went to see his doctor and the doctor gave him five tablets asking him to take one tablet every 15 minutes.

How much time will it take Roy to consume all the five tablets?

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