A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?

Using Only Five 5's and any mathematical operator make sum as 37

Out of four images which one is the odd one out?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

what does the below rebus mean?

They are three errirs in this question. Can you find them?

I am white when I am dirty, and black when I am clean. What am I?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?