In the image below, can you find the value of an angle(y)

Solve the equation in the image by looking at the pattern closely.

What has many keys but can’t open a single lock?

What begins with T, ends with T, and has T in it?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

Why do people go to bed?

Why do Chinese men eat more rice than Japanese men do ?

Can you find the missing piece of the Porsche?