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

Replace the question mark with the correct number in the below-given picture?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

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 solve the below algebraic mathematical equation?

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