What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Prove that twice of ten is the same as twice of eleven.

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

Spot the cat in the picture below

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

How can you tell a raw egg from a hard-boiled egg?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?