4 children's puzzles that will solve not all adults

Sometimes kids asking such problems over which half the office may freeze and forget about work. And the kids decide to go with them. Here are four of these tasks, try them reshit.Otvety hidden, but you will see them, if you select the text after the "A" .Zadacha № 1. Parking
It's a simple question of the Hong Kong test for admission to primary school.


Answer: "87.
You just have to mentally rotate the image upside down. "The task № 2. four-digit number
Doshkolyata solve this puzzle for 5-10 minutes. Programmers - 1 hour.


Answer: "2581 = 2.
In each group of 4 numbers needed only to count the closed circles. For example, a circle 6 digits, numbers from 8 - two. And, then, in 6889 their number six. And so on. "The task № 3. Numerical pyramid
Puzzles like this, Singapore's third graders click like peanuts.


Answer: «D = 1345; E = 2440.
The first step adds two numbers in the bottom row: 198 + 263 = 461.
The result was more than the sum of the number that is on them: 461 & gt; 446.
Is subtracted from the larger less: 461 - 446 = 15.
Similarly, we consider the other pairs and see that all turns 15.
Ta-dum! That's the key to the solution. "The task № 4. Chocolate Box
The task of the United States for children 12-13 years old: "The box of 50 chocolates. 30 of them with caramel, 25 - with coconut, 10 - and with caramel and coconut, and the other without any filling.
Q: What is the figure accurately reflects the contents of the box? ».


Answer: "diagram B.
Simple arithmetic:
How many chocolates with caramel only? 30 - 10 = 20.
How many chocolates with only coconut? 25 - 10 = 15.
What remains unfilled chocolates? 50 - (20 + 15 + 10) = 5. '