What is the next number in the series?

15 29 56 108 208 ?

Which number should replace the question mark?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Spot what is wrong here in below Picture?

Solve this riddle by finding the odd one out from the rest.

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

what does the below math rebus puzzle mean?