I am an odd number. Take away a letter and I become even. What number am I?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Can you find out which options fits best with the missing column?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

How do you go from 98 to 720 using just one letter?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?