#1 - River Riddle

Four people need to cross a dark river at night.They have only one torch and the river is too risky to cross without the tourch. if all people cross simultanoesly then torch light wont be sufficient.Speed of each person of crossing the river is different.cross time for each person is 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the river ?

River Riddle

The initial solution most people will think of is to use the fastest person as an usher to guide everyone across. How long would that take? 10 + 1 + 7 + 1 + 2 = 21 mins. Is that it? No. That would make this question too simple even as a warm up question.

Let's brainstorm a little further. To reduce the amount of time, we should find a way for 10 and 7 to go together. If they cross together, then we need one of them to come back to get the others. That would not be ideal. How do we get around that? Maybe we can have 1 waiting on the other side to bring the torch back. Ahaa, we are getting closer. The fastest way to get 1 across and be back is to use 2 to usher 1 across. So let's put all this together.

1 and 2 go cross
2 comes back
7 and 10 go across
1 comes back
1 and 2 go across (done)

Total time = 2 + 2 + 10 + 1 + 2 = 17 mins

#2 - Rebus Puzzle For Kids

What does this say: T RN?

Rebus Puzzle For Kids

No U Turn

#3 - Two Door Riddle

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

Two Door Riddle

If you ask the guard who always tells the truth, he would tell you the other guard would point you to the door of death. If you ask the guard who always lies, he would tell you the opposite door of the truth-telling guard and point you to the door of death. In either case, both guards will point to the door of death so you should choose the other one.

#4 - Easy math puzzle

I am the owner of a birds store. If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

Easy math puzzle

I have 3 cages and 4 birds

#5 - Difficult Riddle

What does this say? XLR8

Difficult Riddle


#6 - Mismatch Sum Puzzle

A bank customer had £100 in his account. He then made 6 withdrawals, totaling £. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
£50 £50
£25 £25
£10 £15
£8 £7
£5 £2
£2 £0
£100 £99

Why are the Totals not exactly right ?

Mismatch Sum Puzzle

There is no reason whatever why the customer's original deposit of £100 should equal the total of the balances left after each withdrawal.
The total of withdrawals in the left-hand colum may equal £100, but is is purely coincidence that the total of the right-hand column is close to £100.
Let us show another example, but starting with £200 in the bank:
Withdrawals Balance left
£50 £150
£25 £125
£10 £115
£8 £107
£5 £102
£2 £100
£100 £699
Moral of this story? Don't Total Balances.

#7 - Funny Problem

A man drove to a hotel and as soon as he got there he was bankrupt. Explain.

Funny Problem

The man was playing Monopoly and when he rolled the dice he landed on a property he could not afford to pay the rent on.

#8 - Solve Picture Problem

What does this mean ?

Solve Picture Problem

Eye Drop

#9 - Rebus Word Puzzle

What does this say?

Rebus Word Puzzle

Tennis shoes

#10 - Logic Puzzle

A cat, a dog and a moneky were stolen. 3 suspects got caught: Harish, Manoj and Tarun. All we know that each person stole one animal, but we do not know who stole which. Here are the investigation statements. Harish said: Tarun stole the cat. Manoj said: Tarun stole the dog. Tarun said: They both were lying. I did not steal the cat or the dog. Later on, the police found out the man who stole the moneky told a lie. The man who stole the cat told the truth. Can you find out who stole which?

Logic Puzzle

Harish stole Moneky ( R $ C )
Tarun stole Dog ( T $ D )
Manoj stole Cat ( S $ H )