Ten Problems

For which number can you move the ones digit to the front and  in effect doubling the original number? (i.e. ABC becomes CAB, and )

Your assignment is to make a delivery from the depot to your base camp, 1600 miles away. The trip begins normally, but unfortunately, halfway to base camp, your supply truck breaks down. You have no way to call for help. Luckily, in addition to medical supplies, the truck is carrying a Desert Patrol Vehicle (DPV) and two barrels of fuel.

The DPV has a full 10 gallon tank, but to make room for the medical supplies, it can only carry one of the 45 gallon barrels at a time. While you can’t transfer fuel between barrels, you can refill the tank from the barrels. Assume the DPV can get 12 miles per gallon, regardless of the load it carries.

How far can you go? Is it far enough to deliver the medical supplies and the DPV to your base camp?

Solution

What is the next member of the following odd sequence:

663, 896, 84733, 3687, ?

Solution

Deborah, Samantha, Eli and Aaron all went to the mall. When they all were hungry, they went to the food court. Their choices were: Chinese, Italian, Mexican, and Southern. However, they all went together to get their food. What food did they order and in what order did they get their food?

1. Eli loves sushi.

2. Samantha went before Aaron.

3. Aaron likes Southern and Mexican, and he went second.

4. Deborah loves pinto’s and cheese.

5. Eli went right after Aaron.

6. Samantha went before Deborah, and she loves Chicken Alfredo.

Solution

Detective Sing sat across the table from his friend, John.
John had just come back from seeing a sleep therapist. He claimed that he would be able to cure John’s insomnia forever, if John agreed to spend a week at his “Sleep Camp”. The catch was that the week’s treatment cost “$5,000″.

“But it’ll be worth it,” John said “If only he cures my insomnia. I’ve not had a good night sleep in as long as I can remember. The doctor says it’s because when I go into “deep sleep” known as “gamma sleep” I don’t make the transition to and from REM sleep properly, thus making me wake up, and stay awake all night.”

“He might be able to help you, his theory certainly appears sound” Detective Sing said. “But I don’t believe he is a real sleep therapist.”

Why not?

Solution

What is it, then, at which our heart laughs merrily when it weeps,
but makes our heart sad and mournful when it shines too brightly?

Solution

Here’s a classic.

A man is travelling with a tiger, a goat, and a cabbage. He needs to cross a river and has only a small boat. It is so small that he can only carry one belonging at a time.

If the tiger eats the goat and the goat eats the cabbage if left unattended, how can the man cross the river with all his belongings intact?

Rearrange the letters in new door to make one word.

As I was going to St. Ives,
I met a man with seven wives.

Each wife had seven sacks,
Each sack had seven cats,
Each cat had seven kits.

Kits, cats, sacks, wives,
How many are going to St. Ives?

A man claims to know the score of every football game before it starts. How does he do it?

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Solution

Source: puzzles.about.com

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Solution

© Bonnie J. Malcolm

You have 101 coins, 50 of which are and the rest are . coin weights 1g more than coin. You have a balance to calculate the difference of two sides in gram. If you have to choose one coin from this 101 coins, how can you know whether it’s or ? How do you do this using the balance the least number of times?

You have 6 matchsticks of equal length. How do you make 4 triangles without crossing any matchstick (so that the ends form corners exactly)?

Add puctuations to the following sentence to make it grammatically correct.

Billy while Bob had had had had had had had had had had had a better effect on the teacher.