I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

What month of the year has 28 days?

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

Can you find the thief by just looking at the picture below?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.