In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

You need to arrange three 7 and mathematical symbols to form number 1?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

Three people check into a hotel. They pay $60 for the rent of the room. After they check-in, the manager realize that the rent for the room is $55. So, he gives $5 to the bellboy and asks him to give it to them. The bellboy thinks that it will be difficult for the three people to share $5 among them and seeking the personal benefit, he pockets $2 and gives the remaining $3 to them.

Now, each person paid $20 and got back $1. In this manner, each of them paid just $19 which totals to the amount of $57. The bellboy has $2 with him and adding them, we get $59. So where is the remaining $1?

In the formation, you can see a few arranged matchsticks. Can you form three squares by moving just three matchsticks?

Can you count the number of squares in the figure below?

Look at the picture and find out which square is not linked with any of the other squares.

What phrase is represented by the Rebus

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?