#511 - Measure Time Interview Puzzle

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

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Burn one candle from both the ends and simultaneously burn the other candle from just one end. In half an hour, the first candle would have been burnt fully and the second one would have been burnt half. Now light the other end of the second candle as well. In this way, the second candle will take only half the time (30/2 = 15) to burn fully.

Thus, you will have measured forty five minutes.

#512 - Popular Missing Number Sequence

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

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4

The number in the upper row indicates the number of letters in the alphabetical form of the number below.

9 = Nine = four letters
Therefore the missing number is 4.

#513 - 8 Letter Picture Puzzle

In the given picture, you can find two letters to be missing. When two particular letters are placed in the missing spots, you get an eight letter word while reading in anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

8 Letter Picture Puzzle
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The missing letters are C (on the right) and P (on the left) and the word is champion.

#514 - Trick Quick Riddle

Usually, a boxing match consist of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the seventh round itself as one of the boxer knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible ?

View Answer Discuss

This is absolutely possible because the match was between two female boxers.

#515 - Complete The Equation Puzzle

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

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2418 is the answer.

The algo that has been used here is

A $ B $ C $ D = [first digit of (A * D)] [last digit of (B * C)] [first digit of (B * C)] [last digit of (A * D)]

Using the same algo,
7 $ 2 $ 7 $ 4 = [first digit of (7 * 4)] [last digit of (2 * 7)] [first digit of (2 * 7)] [last digit of (7 * 4)]
= 2418

#516 - 8 Number Grid Puzzle

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

8 Number Grid Puzzle
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This problem can be solved in four different ways. The picture shows you one of the solutions. Can you find out the other three?

#517 - Which Direction Puzzle

B is to the North-East of D; A is to the North-East of C; C is to the West of D; E is to the South-West of D and to the South of C; and A is to the north of D and in line with B.

You have to find out that in which direction of E is B located. Can you do it ?

View Answer Discuss

As we draw on a paper (see the figure) we find out that B is located on the North-East of E.

#518 - Six Digit Number Puzzle

Calculate a six digit number that is smaller than 500000 such that the sum of its digits is 43 exactly.

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499849

Let us begin with the maximum sum of a digit under 500000. Of course it will be the sum of 499999.
4 + 9 + 9 + 9 + 9 + 9 = 49.

Now, the required number must be close to it.
Rooting 499999, we get 707.106
Taking the square of 707, we get 499849.
4 + 9 + 9 + 8 + 4 + 9 = 43

Thus, the required number is 499849.

#519 - Trick Time Riddle

Doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets ?

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60

The patient will be able to take all the tablets in an hour. This is because the first tablet will start the time.
1st tablet = 0 min
2nd tablet = 15 min
3rd tablet = 30 min
4th tablet = 45 min
5th tablet = 60 min

#520 - Seven Members Five Rows Puzzle

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves in five teams with seven members each, forming five rows.

How did they manage to achieve this formation ?

View Answer Discuss

You can see that they decided to form a pentagonal formation.