Level 1
A family has five sons, and each of them has a sister. How many kids does a family have in total?
6
I am an odd number. If you subtract 10 from me, you get 15. What number am I?
25 (25 – 10 = 15).
A couple went for a picnic. They have 5 sons and each son has three sisters. Each sister has one baby. In total how many people went for the picnic?
Total Members = 13
Couple: 2 people
Sons: 5
Sisters: 3
Babies: 3
What is the capital city of France?
Paris
What should you place between 3 and 4 to make it bigger than 3 but smaller than 4?
It’s a decimal point: 3.4.
2, 4, 8, 16, 32 …
64 because you double each consecutive number.
How many 9’s are there between 1 and 100?
20
Which organ performs blood purification in the human body?
Kidney
This number can be positive or negative, and it starts with I and ends with R. What is this number?
It’s an integer.
How can you make 45 using only 4?
You have to use fractions: 44 + 4/4 = 45 because 4/4 = 1.
I am four times as old as my daughter. In 20 years’ time I shall be twice as old as her. How old are we now?
I am 40 and my daughter is 10
How many sides does a decagon have?
10
When David was eight, his little brother Alex was half his age. David is 30 now. How old is Alex?
26
A box contains 20 marbles. If 25% of the marbles are blue, how many marbles are blue?
5 marbles (25% of 20 is 5).
Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation
2 + 5 = 3 + 4
The smallest number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is:
548
Two fathers and two sons make wooden chairs. If each makes a wooden chair, why are there only three produced?
There are only three people – a father, his son, and his son’s son.
There is a three digit number. The second is four times as big as the third number, while the first is three less than the second digit. What is the number?
141
How can you add eight 8’s to get the number 1000?
888 + 88 + 8 + 8 + 8 = 1000
A triangle whose sides are 15cm, 36cm, and 39cm is:
Right-angled