In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

What has many keys but can’t open a single lock?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Complete the table series riddle by finding the number that can replace "??".

Prove that twice of ten is the same as twice of eleven.

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?