Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

How do you go from 98 to 720 using just one letter?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

How can you leave a room with two legs and return with six legs?

Shyla was sleeping in her apartment when suddenly a robber broke into her house. He asked her to stay quiet and started looting the cash and jewelry. Suddenly the landline phone started ringing. The robber pointed a gun at Shyla and asked her to pick up and talk without giving away the situation.

She picked up the phone and it happened to be her husband. She spoke, Is it an emergency darling? Do give me a call when your flight lands, I will prepare your favorite food that will help you relieve the stress. Then she hanged up.

10 minutes after, the police arrive at the scene and catch the robber. How did the police know about the robbery?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

People make me, save me, change me, raise me. What am I?