Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?

What can jump higher than a building?

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

Count the number of balls in picture below:

John is found dead in his office at his desk. The police have narrowed the suspects down to three people: Mrs. Jacob, John’s wife Hena and his business partner Jason . All three visited John on the day of his murder, but all three provide the police with stories of explanation as to the reason for their visit.
Police found John with his wrist watch still on his right arm, a torn up picture of his wife laying on the floor beside the trash can, and an ink pen in his right hand. On the desk, the police found a name plate, a telephone that was off the hook, and a personal calendar turned to the July 5th page with 7B91011 written on it. After examining this evidence, the police knew their suspect. Who was it ?

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

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

What breaks yet never falls, and what falls yet never breaks?