• Views : 40k+
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Mind Teasers : Mathematics Sequence Question

Difficulty Popularity

If you are provided that
(78)^9 = 6
And (69)^4 = 11

What will be the result of (89)^2 = ?

Discussion
Suggestions
  • Views : 70k+
  • Sol Viewed : 20k+

Mind Teasers : Terrorist Plane Hijack Puzzle

Difficulty Popularity

A terrorist hijacks a plane with 10 passengers and there is lots of gold in the plane.
After talking the gold , he asked the government officials for 11 parachutes.
He killed all the passenger so that no one can identify him , take one parachute and jumps off.

Was he stupid to ask for 11
parachutes if he need only one ?

  • Views : 50k+
  • Sol Viewed : 20k+

Mind Teasers : Tricky Logic Question

Difficulty Popularity

A claustrophobic person boards a train that is just about to enter a tunnel.

Which place will be the best for him to sit?

By Admin
  • 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 : Solve Magic Square Riddle

Difficulty Popularity

You have to place all the digits from 1 to 9 without repeating any number in a tic tac toe board. The condition is that the numbers should add up to 15 whether you add the numbers in each row, column or diagonally.

Can you do it?

  • Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Guard Door Riddle

Difficulty Popularity

You are in a strange place which is guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there.
What should you ask?

By Admin
  • Views : 70k+
  • Sol Viewed : 20k+

Mind Teasers : Interesting Bet Puzzle

Difficulty Popularity

In a bowl, there are several chits with distinct numbers on them. You have to choose any two of them at random.

Will you accept the 2 to 1 bet that the numbers will be relatively prime will you accept it?

For instance:
If the numbers you pick are 6 and 13, you lose $1.
If the numbers you pick are 5 and 25, you win $2.

  • Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Clock Puzzle

Difficulty Popularity

The needles of a clock overlaps at 12:00 in a 12 hour format clock.

When will the two needles overlap again ?

  • Views : 50k+
  • Sol Viewed : 20k+

Mind Teasers : Eight Eights Brain Teaser

Difficulty Popularity

Using eight eights and addition only, can you make 1000?

By Admin
  • Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Accelerating Train Logic Riddle

Difficulty Popularity

I sit on Japan's latest maglev bullet train from its first station. The train starts and is now accelerating and is about to enter the tunnel. What is the best position for me to sit, considering I am a claustrophobic guy?

By Admin
  • Views : 40k+
  • Sol Viewed : 10k+

Mind Teasers : Riddle 1 - 1 !=3

Difficulty Popularity

Can you move four matchsticks to make the equation true?

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