Bulbs Switch On/Off Puzzle

This is a difficult electric bulb on off the puzzle.

100 bulbs puzzle

In a room there are 100 bulbs which are all off . Now we have 100 people in the room.
First person goes and switches on all the bulbs.
 Second person goes and again switches off all the even numbered bulbs.
Third person goes and again switches on every third bulb.
Fourth person goes and again switch off every fourth bulb.
This continues till 100 people...

Now after this, how many bulbs would still be lit ?

Tease your brain to solve this difficult riddle ! :)

Solution : Tricky River Crossing Puzzle

This is a solution to a very tricky river crossing puzzle.

Read the original puzzle here: River crossing riddle

Here is the solution now :
Let us assume all of those standing on first shore. Then the transport would take place in this manner.

• Policeman and thief go first, policeman comes back.
• Policeman and first son goes and policeman with thief comes back.
• Father and second son goes and father comes back.
• Mother and father goes and mother comes back.
• Policeman and thief goes father comes back.
• Father and Mother goes , mother comes back.
• Mother and first daughter goes , policeman and thief comes back.
• Policeman and second daughter goes, policeman comes back.
• Policeman and thief goes.

All people have reached other shore now.

Hope you had solved this correctly already , No? Try others.

Lover and Kiss Riddle

A young boy on seeing a beautiful girl goes to her and says like this.

Boy : I will say a statement , if I am truthful, you will give me your phone number .. If it is a lie , then do not give me your number." 

Girl Agrees.
Then boy says some statement , hearing which the girl finds that if she does not give him her phone number she would have to kiss her.

What did the intelligent boy say?

Tricky River Crossing Puzzle Level 3

Here we have a difficult river crossing brain teaser to solve.

We have one family which needs to cross the river. In it we have mother ,father, two sons and two daughters. Along with them we have a policeman a thief. The boat we have can carry only two people at a time.

• Daughters can not be left with their father in the absence of the mother.
• Sons cannot be left with their mother in the absence of the father.
• The thief cannot be left with any of the family members in the absence of a policeman.
• Also only the father , mother and policeman knows how to drive the boat.

Can you talk all these to other side of river ?

Only 10% of people can solve this riddle in unlimited time. In around 5 minutes if you solve this you are in 2% people ! :)

Tease the Brain now!

For solution : Solution River crossing Riddle

solve this rebus puzzle

What will you call this rebus puzzle?

Answer:

Answer: Swim UnderWater

Count Number of Triangles Puzzle #1

Can you count the number of triangles in this figure shown below ?

The correct number of triangles in the above figure puzzle is 35 . How many could you find ?

Father and Son Face Illusion

This is a face illusion in which both a young boy and an old man can be seen. It depends on your perception and your view towards world what you see first ! This is also known as Father and son illusion.

Can you see both father and son face in this illusion?

Cannot see both faces?

The young boy is looking behind with a line at his neck which possibly marks his scarf. The same scarf line appears as a mouth for the old man though who appears looking at the right side. The ear of young boy is eye of Old man and chin of young boy is nose of old man in this optical illusion.