This document contains a collection of math puzzles, riddles, facts, and tricks. It includes 7 math puzzles or riddles with the answers provided. Some examples include a riddle about the number seven and a puzzle involving adding 8 eights to get 1000. It also shares 13 interesting math facts such as the origins of terms like mathematics and zero. Facts cover topics like the Fibonacci sequence, divisibility rules, and connections between numbers like 111,111,111. The document aims to inform and entertain the reader with curiosities in mathematics.

1. SHELIN ELIZABETH VARGHESE
B.Ed MATHEMATICS
REG NO13304013
NSS B.Ed TRAINING COLLEGE

2. MATHEMATICS
 I am an odd number. Take away one letter
and I become even. What number am I?
Answer: Seven (take away the ‘s’ and it
becomes ‘even’).
 Using only addition, how do you add eight
8’s and get the number 1000?
Answer: 888 + 88 + 8 + 8 + 8 = 1000
 Sally is 54 years old and her mother is 80,
how many years ago was Sally’s mother
three times her age?
Answer: 41 years ago, when Sally was 13
and her mother was 39.

3.  Which 3 numbers have the same answer
whether they’re added or multiplied
together?
Answer: 1, 2 and 3.
 There is a basket containing 5 apples, how
do you divide the apples among 5 children
so that each child has 1 apple while 1
apple remains in the basket?
Answer: 4 children get 1 apple each while
the fifth child gets the basket with the
remaining apple still in it.
 There is a three digit number. The second
digit is four times as big as the third digit,
while the first digit is three less than the
second digit. What is the number?
Answer: 141

4.  What word looks the same backwards and
upside down?
Answer: SWIMS
 Two girls were born to the same mother, at
the same time, on the same day, in the
same month and in the same year and yet
somehow they’re not twins. Why not?
Answer: Because there was a third girl,
which makes them triplets!
 A ship anchored in a port has a ladder
which hangs over the side. The length of
the ladder is 200cm, the distance between
each rung in 20cm and the bottom rung
touches the water. The tide rises at a rate
of 10cm an hour. When will the water
reach the fifth rung?

5. Answer: The tide raises both the water and
the boat so the water will never reach the
fifth rung.
 ABCD × E = DCBA
(Replace letters with digits and have the
sum be true. A,B,C,D and E are all
different digits.)
Answer
2178 × 4 = 8712

6. MATHS INTERESTING
AND AMAZING FACTS
* The word MATHEMATICS comes from a
Greek mathema which means learning,
study,science.
* Dyscalculia means difficulty in learning
mathematics,such as difficulty difficulty in
understanding numbers, and learning maths
fact.
* Mathematics is an anagram of ‘me
asthmatic‘
*The number 5 is pronounced as 'Ha' in Thai
language.555 is also used by some as slang for
'HaHaHa'.
* Different names for the number 0 include
zero, nought, naught, nil, zilch and zip.
* Zero ( 0 ) is the only number which cannot
be represented by Roman numerals.
* The name 'zero' derives from the Arabic
word sifr which also gave us the English word
'cipher' meaning 'a secret way of writing'.
* Do you know the magic of no. nine (9)?
Multiply any number with nine (9 ) and then

7. sum all individual digits of the result (product)
to make it single digit, the sum of all these
individual digits would always be nine (9).
*Here is an interesting trick to check
divisibility of any number by 3.A number is
divisible by three if the sum of digits is
divisible by 3.
*The = sign ("equals sign") was invented by
16th Century Welsh mathematician Robert
Recorde, who was fed up with writing "is
equal to" in his equations.
* Googol (meaning and origin of Google
brand ) is the term used for a number 1
followed by 100 zeros and that it was used by
a nine year old Milton Sirotta in 1940.
* The spiral shapes of sunflowers follow a
Fibonacci sequence.
* The word hundred is derived from the word
“hundrath”, which actually means 120 and not
100.
*111,111,111 × 111,111,111 =
12,345,678,987,654,321.
* (6 × 9) + (6 + 9) = 69.
*10! seconds is exactly 6 weeks.

8. as fed of any number by number 3.A number
is divisible by three if the sum
 of its digits is divisible by three (3).Here is an
interesting trick to check divisibility of any
number by number 3.A number is divisible
by three if the sum of its digits is divisible
by three (3).