The most viewed examples

  1. Three cats
    three_cats If three cats eat three mice in three minutes, after which time 140 cats eat 140 mice?
  2. Brick
    brick One brick is 2 kg and half a brick heavy. What is the weight of one brick?
  3. Chocolate
    cokolada Charlie bought 7 same chocolates for 14 Eur. How many euros he pay for 27 chocolates?
  4. Divisibility
    divisibility Is the number 109433 divisible by 7?
  5. Family
    bigfamily The parents had 2 daughters. Each of them had one brother. How many members family had?
  6. Chickens
    chickens 4 chickens give 4 eggs in 4 days. How many eggs can give 8 chickens for 8 days?
  7. 7 heroes
    7statocnych 5 heroes galloping on 5 horses behind. How many ways can sort them behind?
  8. Inflation
    dollar What is better for people (employees)? ?
  9. Logic
    blue-barrel A man drinks a barrel of water for 31 days, woman for 58 days, for how many days they drink barrel together?
  10. One half
    one_half One half of ? is: ?
  11. Right Δ
    ruler Right triangle has length of one leg 7 cm and length of the hypotenuse 25 cm. Calculate the height of the triangle.
  12. Subtraction
    cards1 How many times you can subtract the number 5 from the number 67?
  13. Cyclist
    cyclist_2 A cyclist passes 88 km in 4 hours. How many kilometers he pass in 8 hours?
  14. Flags
    vlajka_cz How many different flags can be made from colors red, white, blue, black, yellow, green, purple, gray, orange so that each flag consisted of three different colors?
  15. Orchard
    orchard 5 trees in 3 lines grows in the orchard. How many trees are in the orchard?
  16. Holidays
    holidays Calculate how many hours take holidays, if take 1 weeks.
  17. Vans
    shuttlevan In how many ways can 7 shuttle vans line up at the airport?
  18. Homeless Dezider
    kos Homeless Dežko has 13 coins in jacket: Calculate the value of its assets and calculate how many bottles of wine for 0.55 EUR can he buy.
  19. Textbooks
    textbooks After check of textbooks found that every 8-th textbook should be withdrawn. Together 74 textbooks were withdrawn. How many textbooks were in stock before withdrawn and how many after withdrawn?
  20. Ace
    ace From complete sets of playing cards (32 cards) we pulled out one card. What is the probability of pulling the ace?

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