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

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

Replace the question mark with the correct number below.

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

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

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

What is the largest number you can write with just 3 digits?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?