What has hands, but can’t clap?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Replace the question mark with the number below given a simple math problem.

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

what does the below rebus mean?