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

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Decode below rebus
D
N
A
T
S , D

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

Solve the mathematical equation in the picture below.

Name a key which is hardest to turn.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?