It was a dark stormy night and a couple were in a car driving madly to a city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

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?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you make four (4) nines (9) equal 100?

Can you spot the man between the coffee bean in the picture below ?

Look at the picture and find out which square is not linked with any of the other squares.

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211