How many triangles are there on the puzzle below?

Can you count the number of quadrilaterals in the picture below?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Out of four images which one is the odd one out?

1. How can we put an elephant in the refrigerator?
2. How can we put a Giraffe in a refrigerator?
3. The king of the jungle invites all the animals to a party everyone comes except for one animal, which animal?
4. You come to a crocodile-infested lake, you can't go around it, you can't co under it and you can't go over it, how do you get across?

How can you make number one disappear by adding something to it?

I have Rs.50 and I spend it in the way as below.

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?