What occurs twice in a week, once in a year but never in a day?

If an electric train is travelling south, then which way is the smoke going?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

Solve the rebus riddle in the picture below.

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

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?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Can you decipher the below rebus?

PBLUESAISNUERSES