Activities - braineacs

Number Fun

Try to fill in the missing numbers.

The missing numbers are from 0 to 10.
The numbers in each row add up to the totals to the right.
The numbers in each column add up to the totals along the bottom.
The diagonal lines also add up to the totals to the right.

Puzzle 1.

Puzzle 2.

Puzzle 3.

Can you do This

You will need...
A glass of water
A hat
A friend

1. Put the hat over the glass of water, on a table.
2. Tell your friend you can drink the glass of water without touching the hat.
3. Lean in under the table, and make drinking sounds.
4. Come out from under the table.
5. When the friend lifts the hat to check on the water, pick up the glass of water and drink it.
6. Now you've drunk the glass of water without touching the hat!

Blow up the balloon

A balloon
An empty water bottle

•  Put the balloon inside the bottle and wrap the balloon opening around the mouth of the soda bottle.

•  No matter how you try to blow up the balloon, you won't be able to do it! The bottle is filled with air and there's no room left over for the empty balloon to expand

Guess the Number

You need

A Friend

Have your friend think of a number between 1 and 100, and to keep it a secret.

2. Now, take your age, multiply by 2, add 5, multiply by 50, and subtract 365. Use a calculator.

3. Next, keep that number from the last step on the calculator, hand the calculator to your friend, and tell them to add their secret number, then add 115.

4. The first half of the resulting number is your age, and the other part of the number is your friend's secret number!

Guess what your friend is thinking

1.Ask your friend to secretly pick a number between 2 and 9.

2. Then ask them to multiply that number by 9.

3. Next, ask them to add the two digits of the result, and then subtract 5.

4. Tell your friend to think of the letter of the alphabet that corresponds to that number (1 is A, 2 is B, etc.).

5. Tell the person to think of a country that starts with that letter.

6. Now tell them to pick the next letter of the alphabet, and an animal that starts with that letter.

7. Now tell them you know what they are thinking, and that it is "Elephants in Denmark". Most people will come up with that answer. If they somehow come up with something else, tell them you clearly heard them thinking of Elephants in Denmark!

Can you add five toothpicks to these six and make nine?

Answer

By adding five toothpicks, you can make nine!

Can you draw the picture below starting at one point, and not lifting your pencil or redrawing over any lines twice?

Answer:

Start at the bottom left corner and move the pencil in the order of the numbers. Follow the direction of the arrows.

Connect The Dots

Can you connect all of the dots in the image below without lifting your pencil and using only 4 straight lines? Draw this out and try.

Answer:

Start at the lower left corner and draw up. Then draw diagonally to the lower right, then left, and finally diagonally to the top right.