The document is a collection of riddles and brain teasers with their answers. It provides logic and reasoning puzzles to encourage mental exercise. It notes that solving these types of tricky questions without cheating demonstrates an actively working brain. It aims to boost mental power by engaging with more brain teasers and riddles. It includes two examples of brain teasers and their answers.

1. 1. What is the sport that neither the audience nor the
participants know the score until the game ends?
Answer: Boxing
2. What is the fruit that has its seeds on the outside?
Answer: strawberry
3. What vegetable is sold only as fresh, never as frozen,
canned, processed or cooked.
Answer: lettuce
4. If your boss tells you that you are an hour earlier, but
twice as long until noon as it would be if it were an hour
later, what time is it now?
Answer: 9 am
5. What comes next in this number sequence?
2, 2, 4, 12, 48, __
Answer: 240
Multiply the first number with 1, you get 2. Then multiply the
second number with 2 is 4. Multiply the third with 3, you get

2. 12, then multiply the fourth with 4, you get 48 and lastly,
multiply 48 with 5 you get 240.
6. A couple went on a long journey. On their way home,
their car broke down. The man got off the car and before
leaving, he instructed the woman to lock the doors and
windows and never to let anyone in. She did what the man
said. But when he returned, he saw that the woman is dead
and a stranger is in the car. How did this happen?
Answer: The woman gave birth to a child. She was pregnant
when the man left. The baby was the stranger while the
woman died during childbirth.
7. An electric train is travelling in the south. The wind is
blowing in the direction of North West. In which direction do
you think will the smoke go?
Answer: An electric train has no smoke.
8. A man is driving with his son when they met a road
accident. The two were rushed to different hospitals. The son
was about to be operated when suddenly, the surgeon said, “
I cannot do this. He is my son?”. Who is the surgeon?
Answer: his mother

3. Brain teasers with answers are not intended to frustrate you.
They are there to encourage you to let your mind work. If
you are able to answer these tricky questions without
cheating, then your brain is actively working. If your score is
lower, this is a warning sign that you should get more brain
teasers with answers to boost your mental power.
There is a house with four walls. Each wall faces south. There is a window in each
wall.
A bear walks by one of the windows. What colour is the bear?
White. If all the walls face south, the house is at the north pole, and the bear,
therefore, is a polar bear.
A boat has a ladder that has six rungs, each rung is one foot apart. The bottom rung is
one foot from the water. The tide rises at 12 inches every 15 minutes. High tide peaks
in one hour.
When the tide is at its highest, how many rungs are under water?
None, the boat rises with the tide.