Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

Find the next number in the following series:
6, 14, 26, 98, __?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Can you replace the question mark with the correct number?

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

What Time Should the last watch show in the below figure?

How many Watermelons are there in the below picture?

If 1+9+8=1, what is 2+8+9?