PUZZLES
#1 a farmer had 17 sheep. all but 9 died. How many is he left
with?
#2 on multiplying together all the nos. 1,2,3,4,5,6,7,8,9,
and 0,what do you get?
# 3 a plane take 1 hour and 20 minutes to fly from city a to
city b and only 80 minutes to return. does the plane take
less time while returning?
#4 if a boy takes 5 seconds to write the digits from 1 to9 ,
how much time does he take in writing the digits from 9
to1 backwards?
# 5 a man went to bed at 8 o’ clock one evening after setting
the alarm for 9 in the morning . when the alarm woke
him up, how many hours of sleep did he have?
# 6 if there are 12 one –rupee stamps in a dozen , how many
two-rupee stamps are there in dozen ?
#7 what is the smallest integer that can be written with
two identical digits?
# 8 can you write 10 with five 9’s ? if yes how ?
# 9 write the biggest number by using four 1’s .
#10 today is sam’s birthday. one year hence he will be twice as
old as he was 10 years ago . how old is sam today ?
#11 a wheel has 16 spokes . how many spaces are there
between the spokes ?
#12 if clock takes 2 seconds to strike 2o’ clock , how long
does it to strike 30’ clock ?
#13 is the number " eleven thousand eleven hundred and
eleven" divisible by 3 ?
#14 if a snail climbs an electric pole at the rate of 90 cm a
day but slips back 60 cm every night ,how long will it the
snail to reach the top of a 360 cm high pole ?
ANSWERS: