Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

What can go through glass without breaking it?

What has lots of eyes, but can’t see?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

A man escapes from jail using help from his girlfriend. The investigators suspect four girls of being the man's girlfriend.

Out of those four girls, one is his girlfriend who is lying. Two of the girls are completely innocent and are speaking the truth. One of the girls is the man's sister who is helping the girlfriend lie. Following are the statements from all four of them:

Ariana: "Myrna is his girlfriend."
Jane: "Angelina is lying."
Angelina: "Ariana is lying."
Myrna: "Jane is not his sister."

Can you find out who is the man's sister among them?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

Solve the maths equation in the picture below by placing the numbers 1 through 9 into the boxes so that all the 3 equations are correct.

What can you serve, but never eat?

Can you find out the number that should replace the question mark with a valid reason?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?