What is the next number in the series?

15 29 56 108 208 ?

What word begins and ends with an E, but has only one letter?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Which flower has two lips?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

What has 88 keys?

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

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?