How to Increase IQ
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Riddles and Puzzles
Lateral Thinking

Six Difficult Riddles

Here are a few of the toughest riddles in our collection. In the side bar there is also a list of other pages that have difficult riddles, puzzles, and even some mind-stimulating jokes. So let's get started with a bit of word play...

1. What English word is nine letters long, and can remain an English word at each step as you remove one letter at a time, right down to a single letter. List the letter you remove each time and the words that result at each step.

2. Are you good at math? Complete the last two in this sequence: 1=3, 2=3, 3=5, 4=4, 5=4, 6=3, 7=5, 8=5, 9=4, 10=3, 11=?, 12=?

3. A farmer was going to town with a fox, a goose and a sack of corn. When he came to a stream, he had to cross in a tiny boat, and could only take across one thing at a time. However, if he left the fox alone with the goose, the fox would eat the goose, and if he left the goose alone with the corn, the goose would eat the corn. How does he get them all safely over the stream?

4. A frog fell into a hole that was 14 1/2 feet deep. He could jump 3 feet, but he slid back a foot each time he jumped. How many jumps does it take him to get out of the hole?

5. A man had twelve toothpicks in front of him. He took one away. Now he had nine in front of him. How is this possible?

6. Continue the series: o t t f f s s _ _ _

Solutions to the Riddles

1. The word is "startling." Remove the "l" and it becomes starting. Then remove the "t" and it is staring. The rest of the changes are as follows: string - sting - sing - sin - in - and finally, I.

2. The solution for both is 6, because that is the number of letters in the name of the numbers.

3. He takes the goose across first, then comes back. Then he takes the fox across and brings the goose back. Then he takes the corn over. Finally he comes back alone and takes the goose across.

4. 7. The frog advances 2 feet with each jump, but he jumps 3 feet, so the 7th jump, starting at 12 feet, brings him to 15 feet, which takes him out of the hole.

5. The remaining 11 toothpicks were arranged to spell the word NINE.

6. E, N. T. They are the first letters of the numbers one through ten.

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For more difficult riddles and related pages, see the following:

Einstein's Riddle : The famous Einstein's riddle. Are you among the 2% that can solve it?

Funny Riddles

Brain Teasers Riddles

Free Brain Teasers

Lateral Thinking Puzzles

Really Funny Jokes

Twisted Humor

Brain Exercises

Mind Puzzles

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