I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What 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?

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

What can go through glass without breaking it?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Find the missing number in the sequence below:

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

You are a cab driver who pools passengers. You pick 3 people from a destination and drop 1 after an hour. 2 people climb aboard at the same time and you drop 3 at the next destination. After some time, you pick 2 passengers only to drop 1 after a short distance where 3 more passengers climb up the cab. You leave the rest of the passengers one by one to their destination and then come back home.

Can you tell the eye color of the cab driver?

Can you count the number of blocks in the picture below?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?