Turn of the Century Puzzle

Your grandfather, determined to start the year 1900 off right, went to bed at 7 p.m. on December 31, 1899, setting his alarm clock to wake him at 8 the next morning. He slept like a log. How many hours sleep did he get?

Ancient Coin Puzzle

A thief went to a shop that sold antique coins. He stole a coin from Emperor Alexander’s time that had 326 B.C. inscribed on it. These rare coins were worth \$ 100 for every year of their age (years from date of minting till now). So how much did the thief get for his stolen coin?

Both the puzzles above have some similarity. There is a clue hidden in the title of the post itself.

Timing Puzzles

Timing Puzzles

Timing Puzzle 1
Having 2 sand-glasses: one 7-minute and the second one 4-minute. How can you time correctly 9 minutes ? Read More

You have 12 coins, one of which is fake.

Hey friends, try and solve this intricate puzzle. You can use your skills to explain this puzzle using a flow chart. If you make one send it to me on my email address, I will include it in the body of this post itself.

Astral Maths

Look at the shape below and answer the following questions on it.

1. How many triangles are there in the diagram?
2. How many rectangles are there in the diagram?
3. How many hexagons can you find?
4. Deduct the sum of the numbers in the rectangles from the sum of the numbers in the triangles.

If 1=5

2=6

3=7

4=8

5=?

Change a hundred rupee

Change a hundred rupee note into 50 notes. No Rs. 2 coin is allowed.

A beggar’s brother died

A beggarâ€™s brother died, but the man who died had no brother.

How could this be…?

Vacation Time

It was vacation time, and so I decided to visit my cousin’s home. In the mornings, we both would go for a jog. The evenings were spent on the tennis court. Tiring as these activities were, we could manage only one per day, i.e., either we went for a jog or played tennis each day. There were days when we felt lazy and stayed home all day long.

Now, there were 9 mornings when we did nothing, 13 evenings when we stayed at home, and a total of 12 days when we jogged or played tennis. For how many days did I stay at my cousin’s place?

Up an Escalator

JimmyÂ takes the underground train to work and uses an escalator at the railway station. If Jimmy runs up 7 steps of the escalator, then it takes him 28.5 seconds to reach the top of the escalator. If he runs up 13 steps of the escalator, then it takes him only 19.5 seconds to reach the top.

How many seconds would it take Jimmy to reach the top if he did not run up any steps of the escalator at all?