What does does this rebus picture means ?

What is the last thing you take off before bed?

When can we add 2 to 11 and get 1 as the correct answer?

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?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

What can go through glass without breaking it?

Find the number of squares in the below-given picture.

Can you count the number of quadrilaterals in the picture below?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?