智力測(cè)試

How many five-pointed stars (五角星) can you count in the picture?

智力測(cè)試

What does the following traffic sign mean?

智力測(cè)試

What is unusual about this sentence?

A quick brown fox jumps over the lazy dog.

Two people were flipping (拋) coins. Each time, they bet (打賭) US $1 each game. At the end, one person won US $3. The other won three times. How many games did they play?

If the first two tug-of-war contests (拔河比賽) shown here end in draws (平局), which group will win the third contest, or will it also be a draw?

A long time ago, you could buy eight hens for a dollar or one sheep for a dollar, and cows were ten dollars each. A farmer wanted each type of animal. He bought 100 animals for 100 dollars. How could he do that?

The big square (正方形) has an area of 60 square centimetres. Is there a fast way to figure out what the area of the small square is?

　　Professor Hanks puts 40 matches on the table and explains a game to his friend Kathy.

　　Each player in turn takes one, three or five matches, The winner is the one who takes the last match. Kathy chooses to go first and takes three matches.

　　Who do you think will win this game, Kathy or the professor?

A cow came out of her shed (欄) and walked ten steps east. Then she took two steps to the south and walked backwards four steps. After that she made eight steps to the west. Now which way is the cow's tail (尾巴) pointing?

My mother has-a child who is neither my elder brother nor my younger brother, neither my elder sister nor my younger sister. Who is this child?