Brain teasers

Can you connect the 9 dots using 4 straight lines?

Move 3 matches so the fish faces the opposite direction

Move 2 matches and make the fish look in another direction

In which number is the car parked?

Puzzle of the duplicating bacteria

Move 3 coins to invert the pyramid

Where are two, seven, two zeros?

How much do the 3 animals weigh together?

Move one point and rotate the sequence

Move 3 matches to go from 1 to 3 triangles

Make the cow look to the right by moving only 2 matches

If you overtake the second in a race, what position are you in?

In a car there are 2 mothers and 2 daughters, but only 3 passengers

How many squares are there in the image?