20+20+20=60. How can you make 60 again using the same number 3 times?
55+5
15
You are in a darkened room with a candle, a wood stove and a gas lamp. You only have one match: which do you light first?
The match
15
moving only one cup, how can you make it empty, full, empty, empty, full, empty, full?
You must interchange the second empty one with the second full one
15
What weighs more a kilo of feathers or lead?
Both weigh one kilo
15
Francisco's father has 4 children: Jonathan, Susanna, Ana and? who is the fourth?
Francisco is son number 4
15
Some months have 30 days, others 31. How many have 28 days?
All months have 28 days
15
In a race you overtake the person in second place when you reach the finish line. Where do you finish?
Second
15
How many animals did Moses take on the ark?
None, it was Noah's ark
15
Two parents and two children enter a cafeteria. They all ask for coffee and the waitress brings only 3. If they all drank from their cup, how is it possible?
Because there are a grandfather, his son and his grandson
15
What can you find once in a minute, 2 times in a moment but not once in 100 years?
The letter “m”
15
William and Mike have some oranges. If William gives Mike an orange, the two will have an equal amount of oranges. If Mike gives William an orange, he will have Mike's oranges twice. How many oranges do they each have?
William has 7 oranges and Mike has 5 oranges.
15
A patient in a hospital receives a visitor. A nurse asks who the visitor was. The patient replies: "I have no brothers or sisters, but the visitor's father is my father's son." What is the relationship between the patient and the visitor?
The visitor is the patient's child
15
It's midnight and it's raining. What is the probability of the sun rising in 72 hours?
The probability is 0, because in 72 hours it will be midnight again.
15
You have five meters of fabric and you cut it every 100 cm. How many cuts do you make?
4 cuts
15
Take off my skin and I won't cry, but I'm sure you will. What am I?
