Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

What does does this rebus picture means ?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What has lots of eyes, but can’t see?

What's the only room from which no one can enter or leave

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Can you find the key in the picture below?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

81 x 9 = 801. What must you do to make the this equation true?