What is the next number in the series?

15 29 56 108 208 ?

The husband and wife were jogging in the morning. To match every two steps of the husband, the wife required three steps. If Both of them start with the here right foot. After how many steps do their left foot be together?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

What occurs twice in a week, once in a year but never in a day?

What can you see in the middle of March and April that you can never see in any other month?

If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

I am white when I am dirty, and black when I am clean. What am I?