Which is the smallest number that you can write using all the vowels exactly once?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

What Adam and Eve do not have but the rest of the people have?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

If you excel at these types of visual challenges, you may have superior observation skills, heightened perceptual abilities, and above-average IQs. Find the deer and prove how sharp your eyes are.

Kids with the most attentive eyes can spot a different watermelon in 4 seconds. Can you? Test your eyes now!

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?