RIDDLE 26: POOR EDWARD

Edward is a very busy man who works in a chain of stores. As usual, yesterday he came back home at eight o’ clock p.m. He was so tired that he decided to go to bed immediately, after setting the alarm clock for eight a.m. But, as he was half asleep, he set it for nine p.m. An hour later, when the alarm clock rang, he woke up and got up to have a glass of water and something to eat, since that evening he hadn’t had dinner. When he opened his bedroom door, he saw that everything was completely upside down. Some burglars had broken into his house. Then he ran to see if his savings were still there. At home he had 5000 euros in total: in his safe he found 1700 euros, in his wallet 300 euros, in his closet 200 euros. After that, he went out and found, scattered, throughout the garden, other 400 euros, which the burglars had surely lost while taking flight.

1. How much money is left to Edward?

2. How much money have the burglars stolen?

RIDDLE 27: WHEN DID IT HAPPEN?

On the night of 18 November a famous killer killed some women.

We have to find out the year when the murders happened.

I.   Write the number of the month when the murders happened;

II.  Multiply it by 4;

III. Add 13;

IV. Multiply the result by 25;

V.  Subtract 200;

VI. Add the day of the month when the murders happened;

VII. Multiply it by 2;

VIII. Subtract 40;

IX. Multiply the result by 50;

X. Subtract 120.400.

The final number is the year when the murders happened.

Choose the correct answers.

A.  1402

B.  1906

C.  1900

D. 1893

RIDDLE 21: MATH SWAG

                                                                                                          

1.       The number  which  was  not included in Roman numerals.

2.       What does this symbol mean?

3.       -5/2 ,7, 0.25 are ________  numbers.

4.       All numbers are included in the set of _______ numbers.

5.       The identity element of multiplication

6.       “>” meaning of this symbol

7.       Meaning of  {  } or  ∅

8.       -7,3,7 are _________ numbers

9.       |992-1000|=?

10.   Let x ∈ Z ; if -1 < x ≤3 The greatest values for the following  3x

11.   Zero is ___________ element of multiplication

12.   7(0+9)-(4.14) =?

RIDDLE 30: THE STOLEN BOOKS.

In a library 154 books have been stolen. Among these, the books with a white cover are 3 less than those with a red cover and 5 more than those with a green cover.

How many books with a green cover, white cover and red cover have been stolen?

RIDDLE 7: TWO FRIENDS AND WINDOWS

7. Two old friends met after many years of separation. One of them - Zbyszek said that he has 3 sons and the product of their age and the sum is the number of windows of the house that they were looking at. The second man - Maciek tried to count it but he sais that he can't tell how many years each of the sons is. Than Zbyszek said that the oldest son has got a red hair and Maciek gave the ages of Zbyszek's sons. How many years is each of the sons?

RIDDLE 16: THE LITTLE FISH

In a bucket of water there are three fish, one of them dies.

Now, how many fish are there in the bucket ?

RIDDLE 20: THE CHILDREN

Mr. and Mrs. Martin have 4 boys. Each of the boys has a sister.

How many people are there at least in this familly ?