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 below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

Find the next number in the following series:
6, 14, 26, 98, __?

What part of Turkey has the most feathers?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

In the four images below, can you find the odd one out?

Before Mount Everest was discovered, what was the highest mountain in the world?