Do you think you are ready for a trip back in time? Let's see...

The first 6 questions test your intelligence, the last 4 will enable us to judge your emotional stability.

1. In the following series, what number comes next? 5, 10, 15, 25, 40
80 85 65 75 100

2. Which of the following is the odd one out?
Siberian Tiger Dodo bird Passenger Pigeon Tyrannosaur Mammoth

3. If you have an enclosed shape with four corners, it must be a
A square A rectangle A triangle A square or a rectangle There are other possibilities

4. An airplane travels 500 miles per hour but slows to 300 miles per hour for the last five minutes of flight. The pilot tells you that the plane will land in 20 minutes. How far are you from the airport?
200 miles 150 miles 100 miles 50 miles 10 miles

5. What doesn't belong in the following group. It has nothing to do with letters.
Germany France Italy England Denmark

6. What is not necessary to sustain human life?
Water Sunlight Oxygen Blood Sleep