Look at the picture and find out which square is not linked with any of the other squares.

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

What time is it when an elephant sits on a fence?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

What has to be broken before you can use it?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?