Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

What does it mean?

What four weights can be used to balance from 1 to 30 pounds?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

The Judge knows that Alamgir was killed by his girlfriend Jasline, but the judge is unsure whether to punish her. Why?

Can you find out the total number of triangles in the given figure?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

Can you identify the hidden rebus in the image below?

The Federal bank of London is abducted by the robbers. The head of the robbers asked the cashier to empty their money vault to them and when suddenly cashier got a call from her father. To avoid any suspicion, the robber asked the cashier to pick the call and reply her father in the shortest manner possible.

The cashier told her father "Is there an emergency father, Call me when you are free and I will help you in your furnishing" and then the cashier hung up the phone.

After 10 minutes, police arrived at the crime scene.

How did the police know about the robbery?