Why is 6 afraid of 7?

How many times can you subtract the number 5 from 25?

Find the missing number in the sequence below:

What is the fastest way to double your money?

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

What has many teeth, but cannot bite?

Remove two matchsticks to make the below equation correct.

What word does this rebus represent?

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A couple went on a climbing trip. But only the husband returned from the vacation and said that his wife slipped off while climbing and died. On investigating, the local sheriff arrested him saying, 'Your travel agent called. You murdered your wife.'

The man did not inform anyone about the trip. Then how was the agent so sure that it was a murder?